Very Basic.. Array list Concept.. using two arraylist..

Hello all,
Please clear my Arraylist concept.. the problem is that I am using two arraylist one.. in Spriteframe, and other in SpriteFramecollection.. and adding objects to them..
the problem comes when am adding new frame to framecollection.. instead of adding new.. it changes all previous frames too.. I want to reflect change only in latest one..
Lets explain me in detail..
I have used like
class Project..
     ---> Calculate Button
     ---> MultipleMove Button
     ---> Save Button
In Calculate class..
     Sprite st = new Sprite();
     SpriteFrame sframe = new SpriteFrame();
     ..// I do some calculation
     st.newSprite(croppedimage, file, 0, 0, number, 0, 0);         //here am creating sprite
     sframe.addSprite(st);                            //here am adding sprite to Spriteframe
In MultipleMove class..
     SpriteFrame sframe = new SpriteFrame();
     // do some adding and deleting of sprites in frame
In save class..     //Problem comes here.. Am going crazy!!
     SpriteFrameCollection sframecoll = new SpriteFrameCollection();
     SpriteFrame frame = new SpriteFrame();
--->     sframecoll.addSpriteFrame(frame);     <------- // am just adding frame to framecollection
     }Now when I am printing elements of Sprite.. frame1, and frame2 gets changed simultaneously.. I mean why frame1 also gets changed..
am just adding new SpriteFrame.. to spriteframecollection..
please someone tell me what is wrong in my concept of understanding arraylist..
as making class objects again and again wrong..
what should I do to add only newly Frame to framecollection??.. why all previous frame gets changed too.. ??
gervini
I have class Sprite, SpriteFrame, SpriteFrameCollection as shown below..
import java.io.*;
import java.awt.Image;
public class Sprite               // Each single sprite
     Image img;
     File file;                // is filepath where this sprite is located
     int xcord,ycord;           // xcoord,ycoord are real position in frame
     int numberinfile;           // this is the position of the sprite in the raw file
     int mirrorh, mirrorv;      // for normal=00,horizontal=10,vertical=01,both=11
     void newSprite(Image img, File file, int xcord, int ycord, int numberinfile, int mirrorh, int mirrorv)
          this.img = img;
          this.file = file;
          this.xcord = xcord;
          this.ycord = ycord;
          this.numberinfile = numberinfile;
          this.mirrorh = mirrorh;
          this.mirrorv = mirrorv;
import java.io.*;
import java.util.*;
public class SpriteFrame                          // Full One Frame consisting of many sprites..
     static ArrayList spritelist = new ArrayList();               // arraylist containing many sprites
     void addSprite(Sprite sprite)
         spritelist.add(sprite);
    void removeSprite(Sprite s)
         spritelist.remove(s);
import java.io.*;
import java.util.*;
public class SpriteFrameCollection                    // Consisting of many frames..
     static ArrayList spriteframelist = new ArrayList();          // Arraylist of many frames
     void addSpriteFrame(SpriteFrame spriteframe)
          spriteframelist.add(spriteframe);
    void removeFrame(SpriteFrame sf)
         spriteframelist.remove(sf);
}

It is hard to see what it coursing your problems becouse you only posted axtracts from your code. However I think that it is becouse every time you want to access the methods in SpriteFrame you ar creating a new object. Every time you create a new Strite fram a new, empty ArrayList is being created. What you want to do is create this only once, and pass this instance to the parts of your code that need it.
Let me try to explain this using a matphor. 2 people are trying to make some tea. One person has access to water and another has access to teabags. Both of them know that there is such a thing as a kettle. What you are doing is; person 1 is creating a kettle and filling it with water. Then person 2 is creating a new kettle and trying to pour the water from it. obviously this doesn't work. You want person 1 to creat a kettle, fill it with water and then pass that kettle to person 2. person 2 takes this kettle and then pours the water from it.

Similar Messages

Sort array list and using comparable

With the following code I would like to setup a score object for the current player.
Change it to a string(Is it correct to say parse it to a string type)
Then add it to the arraylist.
So I can sort the array list according to the string size.
That's why I have the variables in that order.
So if 3 players have the same amount of guesses, they can be positioned on the high score list according to their gameTime.
//create score object
               Score currentScore = new Score(guessCount, gameTime, name);
               String currentScoreToString = currentScore.toString();
               //add score to arrayList
               scores.add(currentScoreToString);So the error message says " The method add(Score) in the type arrayList <Score> is not applicable for the arguments(string)"
Now, I understand that, I would like to know if there is another way to achieve what I am trying to do.
Is the string idea I am trying here possible? is it practical or should I use comparable?
I have looked at comparable, but I don't get it.
Will my Score class implement comparable. I am looking at an example with the following code.
Employee.java
public class Employee implements Comparable {
    int EmpID;
    String Ename;
    double Sal;
    static int i;
    public Employee() {
        EmpID = i++;
        Ename = "dont know";
        Sal = 0.0;
    public Employee(String ename, double sal) {
        EmpID = i++;
        Ename = ename;
        Sal = sal;
    public String toString() {
        return "EmpID " + EmpID + "\n" + "Ename " + Ename + "\n" + "Sal" + Sal;
    public int compareTo(Object o1) {
        if (this.Sal == ((Employee) o1).Sal)
            return 0;
        else if ((this.Sal) > ((Employee) o1).Sal)
            return 1;
        else
            return -1;
ComparableDemo.java
import java.util.*;
public class ComparableDemo{
    public static void main(String[] args) {
        List ts1 = new ArrayList();
        ts1.add(new Employee ("Tom",40000.00));
        ts1.add(new Employee ("Harry",20000.00));
        ts1.add(new Employee ("Maggie",50000.00));
        ts1.add(new Employee ("Chris",70000.00));
        Collections.sort(ts1);
        Iterator itr = ts1.iterator();
        while(itr.hasNext()){
            Object element = itr.next();
            System.out.println(element + "\n");
}The thing I don't understand is why it returns 0, 1 or -1(does it have to do with the positioning according to the object is being compared with?)
What if I only use currentScore in a loop which loops every time the player restarts?
//create score object
               Score currentScore = new Score(guessCount, gameTime, name);
               String currentScoreToString = currentScore.toString();
               //add score to arrayList
               scores.add(currentScoreToString);Also why there is a method compareTo, and where is it used?
Thanks in advance.
Edited by: Implode on Oct 7, 2009 9:27 AM
Edited by: Implode on Oct 7, 2009 9:28 AM

jverd wrote:
Implode wrote:
I have to hand in an assignment by Friday, and all I have to do still is write a method to sort the array list. Okay, if you have to write your own sort method, then the links I provided may not be that useful. They show you how to use the sort methods provided by the core API. You COULD still implement Comparable or Comparator. It would just be your sort routine calling it rather than the built-in ones.
You have two main tasks: 1) Write a method that determines which of a pair of items is "less than" the other, and 2) Figure out a procedure for sorting a list of items.
The basic idea is this: When you sort, you compare pairs of items, and swap them if they're out of order. The two main parts of sorting are: 1) The rules for determining which item is "less than" another and 2) Determining which pairs of items to compare. When you implement Comparable or create a Comparator, you're doing #1--defining the rules for what makes one object of your class "less than" another. Collections.sort() and other methods in the core API will call your compare() or compareTo() method on pairs of objects to produce a sorted list.
For instance, if you have a PersonName class that consists of firstName and lastName, then your rules might be, "Compare last names. If they're different, then whichever lastName is less indicates which PersonName object is less. If they're the same, then compare firstNames." This is exactly what we do in many real-life situations. And of course the "compare lastName" and "compare firstName" steps have their own rules, which are implemented by String's compareTo method, and which basically say, "compare char by char until there's a difference or one string runs out of chars."
Completely independent of the rules for comparing two items is the algorithm for which items get compared and possibly swapped. So, if you have 10 Whatsits (W1 through W10) in a row, and you're asked to sort them, you might do something like this:
Compare the current W1 to each of W2 through W10 (call the current one being compared Wn). If any of them are less than W1, swap that Wn with W1 and continue on, comparing the new W1 to W(n+1) (that is, swap them, and then compare the new first item to the next one after where you just swapped.)
Once we reach the end of the list, the item in position 1 is the "smallest".
Now repeat the process, comparing W2 to W3 through W10, then W3 to W4 through W10, etc. After N steps, the first N positions have the correct Whatsit.
Do you see how the comparison rules are totally independent of the algorithm we use to determine which items to compare? You can define one set of comparison rules ("which item is less?") for Whatsits, another for Strings, another for Integers, and use the same sorting algorithm on any of those types of items, as long as you use the appropriate comparison rules.Thanks ;)
massive help
I understand that now, but I am clueless on how to implement it.
Edited by: Implode on Oct 7, 2009 10:56 AM

A suggestion : use "loop array list" instead of ArrayList / LinkedList

ArrayList is good at:
get / set by index : O(1)
appending : O(log(n))
remove last : O(1)
and very bad at:
add middle : O(n)
remove from middle : O(n)
LinkedList is good at:
fast remove from middle, if your iteraror already goes there : O(1)
convenient methods : addFirst, addLast, removeFirst, removeLast : O(1)
and very bad at :
get / set by index : O(n)
here I want to make a suggestion : use "loop array list" instead of the ArrayList and LinkedList.
a "loop array list" is based on array, just like ArrayList. But it has 2 member-variables : the start position, and the real size. the start position can be anywhere within array.length. an element of index "i" is stored in array[ start + i ], and when (start + i > array.length), loop to the beginning of the array; when (start + i < 0), loop to the end of the array.
this "loop array list" has all the good sides:
get / set by index : O(1)
add first / last : O(log(n))
remove first / last : O(log(n))
add / remove from middle : O(n)
(note : because we shrink the backup-array when the real size is too small, add / remove operation take O(log(n)) now.)
the only problem is : add / remove from middle. let's take a look at it.
1. the LinkedList does NOT really add/remove from middle in O(1), you has to locate the element, which is O(n).
2. O(n) is acceptable, O(n^2) is not acceptable. try this : keep removing first element from an very big ArrayList ( size>10^6 ) until it's empty.
the fact is, any list can perform batch-remove / batch-add operation in O(n) instead of O(n^2). it's easy : allocate a new list, iterate the original list, copy the element into the new list if condition is satisfied.
so, instead of "remove from middle", what we need is a new methods : removeAllByCondition( Condition condition ), and now the batch-remove operation can be done in O(n)
here is an implementation of mine. I've tested it on my computer( 512mem + 2G cpu, win2k + jdk1.5 ), it's amazing, just a little slower then ArrayList when add last, and a liitle slower then LinkedList when batch-remove. in all other cases, it's far more better then those 2 kinds of List.
// source code : List2
import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
public final class List2<T> extends AbstractList<T> {
private static int initialArrayLength = 4;
private T[] array;
private int start;
private int size;
private void init( T[] newArray, int start_a, int size_a ) {
array = newArray;
start = start_a;
size = size_a;
@SuppressWarnings("unchecked")
private void init() {
init( (T[]) new Object[ initialArrayLength ], 0, 0 );
public List2() {
     init();
@SuppressWarnings("unchecked")
public List2( Collection<? extends T> collection ) {
     init(
          collection.toArray( (T[]) new Object[ collection.size() * 11 / 10 + 1 ] ),
          0,
          collection.size()
private List2( T[] array_a, int start_a, int size_a ) {
     init( array_a, start_a, size_a );
@SuppressWarnings("unchecked")
public static <TT> List2<TT> createV( TT... elements ) {
     TT[] array = (TT[]) new Object[ elements.length * 11 / 10 + 1 ];
     System.arraycopy( elements, 0, array, 0, elements.length );
     return new List2<TT>( array, 0, elements.length );
public static List2<Double> create( double... elements ) {
     Double[] array = new Double[ elements.length * 11 / 10 + 1 ];
     for( int i=0; i < elements.length; i++ )
          array[i] = elements;
     return new List2<Double>( array, 0, elements.length );
public static List2<Integer> create( int... elements ) {
     Integer[] array2 = new Integer[ elements.length * 11 / 10 + 1 ];
     for( int i=0; i < elements.length; i++ )
          array2[i] = elements[i];
     return new List2<Integer>( array2, 0, elements.length );
public static List2<Character> create( char... elements ) {
     Character[] array2 = new Character[ elements.length * 11 / 10 + 1 ];
     for( int i=0; i < elements.length; i++ )
          array2[i] = elements[i];
     return new List2<Character>( array2, 0, elements.length );
public static List2<Character> create( String s ) {
     return create( s.toCharArray() );
public List2<T> clone() {
     return new List2<T>( this );
// basic
public int size() {
     return size;
private int index( int index ) {
     int i = start + index;
     if( i >= array.length )
          i -= array.length;
     return i;
public T get( int d ) {
     if( d < 0 || d >= size )
          throw new IndexOutOfBoundsException();
     if( size == 0 )
          throw new NoSuchElementException();
     return array[ index( d ) ];
public T set( int index, T element ) {
     if( index < 0 || index >= size )
          throw new IndexOutOfBoundsException();
     int i = index( index );
     T oldElement = array[i];
     array[i] = element;
     return oldElement;
@SuppressWarnings("unchecked")
private void copyAndSetToNewArray( int newArrayLength ) {
     T[] newArray = (T[]) new Object[ newArrayLength ];
     for( int i=0; i<size; i++ )
          newArray[i] = array[ index( i ) ];
     init( newArray, 0, size );
public void addFirst( T element ) {
     if( size == array.length )
          copyAndSetToNewArray( size * 3 / 2 + 1 );
     int i = index( array.length - 1 );
     array[ i ] = element;
     start = i;
     size++;
public void addLast( T element ) {
     if( size == array.length )
          copyAndSetToNewArray( size * 3 / 2 + 1 );
     array[ index( size ) ] = element;
     size++;
public T removeFirst() {
     if( size == 0 )
          throw new NoSuchElementException();
     T oldElement = array[ start ];
     array[ start ] = null;
     start = index( 1 );
     size--;
     if( array.length > size * 2 + 1 )
          copyAndSetToNewArray( size * 11 / 10 + 1 );
     return oldElement;
public T removeLast() {
     if( size == 0 )
          throw new NoSuchElementException();
     int i = index( size - 1 );
     T oldElement = array[i];
     array[i] = null;
     size--;
     if( array.length > size * 2 + 1 )
          copyAndSetToNewArray( size * 11 / 10 + 1 );
     return oldElement;
@SuppressWarnings("unchecked")
public int removeAll( ListCondition<T> condition ) {
     T[] newArray = (T[]) new Object[ array.length ];
     int iNew = 0;
     for( int i=0; i < size; i++ ) {
          T element = get( i );
          if( ! condition.isConditionSatisfied( this, i, element ) )
               newArray[ iNew++ ] = element;
     int oldSize = size;
     init( newArray, 0, iNew );
     if( array.length > size * 2 + 1 )
          copyAndSetToNewArray( size * 11 / 10 + 1 );
     return size - oldSize;
// aux
public boolean equals(Object obj) {
     if( obj == this )
     return true;
     if( obj instanceof List2 ) {
          List2 that = (List2) obj;
          if( this.size != that.size )
               return false;
          for( int i=0; i < size; i++ )
               if( ! Tools.equals( this.array[ this.index(i) ], that.array[ that.index(i) ] ) )
                    return false;
          return true;
     if( obj instanceof List ) {
          List that = (List) obj;
          if( this.size != that.size() )
               return false;
          Iterator thatIter = that.iterator();
          for( int i=0; i < size; i++ )
               if( ! Tools.equals( this.array[ this.index(i) ], thatIter.next() ) )
                    return false;
          return true;
     return true;
public int hashCode() {
     int hashCode = 1;
     for( int i=0; i < size; i++ ) {
          T element = array[ index( i ) ];
     hashCode = 31*hashCode + ( element==null ? 0 : element.hashCode() );
     return hashCode;
public boolean isEmpty() {
     return size == 0;
public T getFirst() {
     return get( 0 );
public T getLast() {
     return get( size() - 1 );
public T getRandom() {
     return get( (int) (Math.random() * size) );
public int indexOf( Object element ) {
     for( int i=0; i < size; i++ )
          if( Tools.equals( array[ index( i ) ], element ) )
               return i;
     return -1;
public int lastIndexOf( Object element ) {
     for( int i=size-1; i >= 0; i-- )
          if( Tools.equals( array[ index( i ) ], element ) )
               return i;
     return -1;
public boolean contains( Object element ) {
     return indexOf( element ) != -1;
public boolean add( T element ) {
     addLast( element );
     return true;
@Deprecated
public void add( int index, T element ) {
     throw new UnsupportedOperationException();
public T remove() {
     return removeFirst();
@Deprecated
public boolean remove( Object element ) {
     throw new UnsupportedOperationException( "use removeAll( Condition ) instead" );
@Deprecated
public T remove( int index ) {
     throw new UnsupportedOperationException( "use removeAll( Condition ) instead" );
public void clear() {
     init();
public Object[] toArray() {
     Object[] result = new Object[ size ];
     for( int i=0; i < size; i++ )
     result[i] = array[ index( i ) ];
     return result;
@SuppressWarnings("unchecked")
public <TT> TT[] toArray( TT[] a ) {
if( a.length < size )
a = (TT[]) java.lang.reflect.Array.newInstance( a.getClass().getComponentType(), size );
for( int i=0; i < size; i++ )
a[i] = (TT) array[ index( i ) ];
if( a.length > size )
     a[size] = null;
return a;
@SuppressWarnings("unchecked")
public void sort() {
     Object[] a = toArray();
     Arrays.sort( a );
     for( int i=0; i < size; i++ )
          array[ i ] = (T) a[ i ];
     start = 0;
@SuppressWarnings("unchecked")
public void sortDesc() {
     Object[] a = toArray();
     Arrays.sort( a );
     for( int i=0, j=size-1; i < size; i++, j-- )
          array[ i ] = (T) a[ j ];
     start = 0;
@SuppressWarnings("unchecked")
public void sort( Comparator<T> comparator ) {
     T[] a = (T[]) toArray();
     Arrays.sort( a, comparator );
     for( int i=0; i < size; i++ )
          array[ i ] = a[ i ];
     start = 0;
@SuppressWarnings("unchecked")
public void sortDesc( Comparator<T> comparator ) {
     T[] a = (T[]) toArray();
     Arrays.sort( a, comparator );
     for( int i=0, j=size-1; i < size; i++, j-- )
          array[ i ] = a[ j ];
     start = 0;
public String toString( String delimiter ) {
     return toString( "", delimiter, "", size() );
public String toString( String prefix, String delimiter, String suffix, int max ) {
     StringBuffer stringBuffer = new StringBuffer( prefix );
     int dest = Math.min( max, size );
     for( int i=0; i < dest; i++ ) {
          stringBuffer.append( get(i) );
          if( i < dest - 1 )
               stringBuffer.append( delimiter );
     if( size > max )
          stringBuffer.append( "...(" ).append( size() - max ).append( " more)" );
     stringBuffer.append( suffix );
     return stringBuffer.toString();
// batch operation
public boolean containsAll( Collection<?> that ) {
     Set<Object> thisSet = new HashSet<Object>( this );
     for( Object element : that )
          if( ! thisSet.contains( element ) )
               return false;
     return true;
@SuppressWarnings("unchecked")
public List2<T> subList( int fromIndex, int toIndex ) {
     if( fromIndex < 0 || toIndex > size || toIndex < fromIndex )
          throw new IndexOutOfBoundsException();
     int newSize = toIndex - fromIndex;
     T[] newArray = (T[]) new Object[ newSize * 11 / 10 + 1 ];
     for( int i=fromIndex, iNew=0; i < toIndex; i++, iNew++ )
          newArray[ iNew ] = array[ index( i ) ];
     return new List2<T>( newArray, 0, newSize );
public void addV( T... that ) {
     for( T element : that )
          addLast( element );
public boolean addAll( Collection<? extends T> that ) {
     for( T element : that )
          addLast( element );
     return ! that.isEmpty();
@Deprecated
public boolean addAll( int index, Collection<? extends T> c ) {
     throw new UnsupportedOperationException();
public void removeRest( T element ) {
     int position = lastIndexOf( element );
     if( position == -1 )
          return;
     while( ! Tools.equals( element, removeLast() ) );
public void removeAllEquals( final T element ) {
     removeAll( new ListCondition<T>() { public boolean isConditionSatisfied(List2 list, int index, T currentElement) {
          return currentElement.equals( element );
public void removeAllBetween( final T from, final T to ) {
     removeAll( new ListCondition<T>() {
          @SuppressWarnings("unchecked")
          public boolean isConditionSatisfied(List2 list, int index, T element) {
               if( from != null && ((Comparable) from).compareTo( element ) > 0 )
                    return false;
               if( to != null && ((Comparable) to).compareTo( element ) <= 0 )
                    return false;
               return true;
public boolean retainAll( Collection<?> that ) {
     final Set<Object> thatSet = new HashSet<Object>( that );
     int removeCount = removeAll( new ListCondition<T>() { public boolean isConditionSatisfied(List2 list, int index, T element) {
          return ! thatSet.contains( element );
     return removeCount > 0;
public boolean removeAll( Collection<?> that ) {
     final Set<Object> thatSet = new HashSet<Object>( that );
     int removeCount = removeAll( new ListCondition<T>() { public boolean isConditionSatisfied(List2 list, int index, T element) {
          return thatSet.contains( element );
     return removeCount > 0;
// unit test
private static int maxTestCount = 1000 * 1000;
public static void unitTest() throws Exception {
     // thest thoese methods for one time
     Tools.ensureEquals( new List2(), new ArrayList() );
     Tools.ensureNotEquals( List2.create( "abcde" ), new ArrayList() );
     Tools.ensureNotEquals( List2.create( "abcde" ), List2.create( "abcdef" ) );
     final List<Double> list1 = new ArrayList<Double>();
     final List2<Double> list2 = new List2<Double>();
     Runnable[] tasks = new Runnable[] {
          // test those methods that do NOT change the list
          new Runnable() { public void run() {
               Tools.ensureEquals( new List2<Double>( list1 ), list1 );
               Tools.ensureEquals( List2.createV( list1.toArray() ), list1 );
               Tools.ensureEquals( List2.createV( list1.toArray( new Double[0] ) ), list1 );
               double[] doubles = new double[ list1.size() ];
               int i = 0;
               for( double d : list1 )
                    doubles[i++] = d;
               Tools.ensureEquals( List2.create( doubles ), list1 );
               Tools.ensure( list1.isEmpty() == list2.isEmpty() );
               Arrays.equals( list1.toArray(), list2.toArray() );
               Tools.ensureEquals( list1, list2.clone() );
               Double notExistElement = -2.0;
               Tools.ensure( list1.indexOf( notExistElement ) == -1 );
               Tools.ensure( list1.lastIndexOf( notExistElement ) == -1 );
               Tools.ensure( list1.contains( notExistElement ) == false );
               Tools.ensureEquals( list1.toString(), list2.toString() );
               Tools.ensureEquals( list1.toString(), list2.toString() );
               Tools.ensureEquals( list1.hashCode(), list2.hashCode() );
               if( list1.isEmpty() )
                    return;
               Tools.ensure( list1.get(0).equals( list2.getFirst() ) );
               Tools.ensure( list1.get(list1.size()-1).equals( list2.getLast() ) );
               Double existRandomElement = list2.getRandom();
               Tools.ensure( list1.contains( existRandomElement ) );
               Tools.ensure( list2.contains( existRandomElement ) );
               Tools.ensure( list1.indexOf( existRandomElement ) == list2.indexOf( existRandomElement ) );
               Tools.ensure( list1.indexOf( existRandomElement ) == list2.indexOf( existRandomElement ) );
               int from = (int) (Math.random() * list1.size());
               int to = (int) (Math.random() * (list1.size()+1));
               if( from > to ) {
                    int t = from;
                    from = to;
                    to = t;
               Tools.ensureEquals( list1.subList( from, to ), list2.subList( from, to ) );
          // test those methods that change the list
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               int i = (int) (Math.random() * list1.size());
               double d = Math.random();
               list1.set( i, d );
               list2.set( i, d );
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               int i = (int) (Math.random() * list1.size());
               Tools.ensure( list1.get( i ).equals( list2.get( i ) ) );
          new Runnable() { public void run() {
               double d = Math.random();
               list1.add( 0, d );
               list2.addFirst( d );
          new Runnable() { public void run() {
               double d = Math.random();
               list1.add( d );
               list2.addLast( d );
          new Runnable() { public void run() {
               double d = Math.random();
               list1.add( d );
               list2.addLast( d );
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               Tools.ensure( list1.remove( 0 ).equals( list2.removeFirst() ) );
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               Tools.ensure( list1.remove( list1.size() - 1 ).equals( list2.removeLast() ) );
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               int i = 0;
               for( Iterator<Double> iter=list1.iterator(); iter.hasNext(); i++ ) {
                    iter.next();
                    if( i % 3 == 0 )
                         iter.remove();
               list2.removeAll( new ListCondition<Double>() { public boolean isConditionSatisfied(List2 list, int index, Double element) {
                    return index % 3 == 0;
          new Runnable() { public void run() {
               double d = Math.random();
               list1.add( d );
               list2.add( d );
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               Tools.ensure( list1.remove(0).equals( list2.remove() ) );
          new Runnable() { public void run() {
               if( list1.isEmpty() )
                    return;
               int r = (int) (Math.random() * list1.size());
               Double element = list1.get( r );
               int index = list1.lastIndexOf( element );
               for( int i=list1.size()-1; i>=index; i-- )
                    list1.remove( i );
               list2.removeRest( element );
          new Runnable() { public void run() {
               list2.removeRest( Math.random() - 2 );
          new Runnable() { public void run() {
               list1.clear();
               list2.clear();
          new Runnable() { public void run() {
               Collections.sort( list1 );
               list2.sort();
          new Runnable() { public void run() {
               Collections.sort( list1 );
               Collections.reverse( list1 );
               list2.sortDesc();
          new Runnable() { public void run() {
               Comparator<Double> comparator = new Comparator<Double>() { public int compare(Double o1, Double o2) {
                    return o1.toString().substring(2).compareTo( o2.toString().substring(2) );
               Collections.sort( list1, comparator );
               list2.sort( comparator );
          new Runnable() { public void run() {
               Comparator<Double> comparator = new Comparator<Double>() { public int compare(Double o1, Double o2) {
                    return o1.toString().substring(2).compareTo( o2.toString().substring(2) );
               Collections.sort( list1, comparator );
               Collections.reverse( list1 );
               list2.sortDesc( comparator );
          new Runnable() { public void run() {
               Double notExistElement = -2.0;
               list2.removeAllEquals( notExistElement );
               Tools.ensureEquals( list1, list2 );
               list2.removeAllBetween( 0.5, 0.6 );
               for( Iterator<Double> iter=list1.iterator(); iter.hasNext(); ) {
                    double d = iter.next();
                    if( d >= 0.5 && d < 0.6 )
                         iter.remove();
               Tools.ensureEquals( list1, list2 );
     System.out.print( "test List2 " );
     for( int i=0; i < maxTestCount; i++ ) {
          tasks[ (int) (Math.random() * tasks.length) ].run();
          Tools.ensureEquals( list1, list2 );
          if( i % (maxTestCount/10) == 0 )
               System.out.print( "." );
     System.out.println( " ok" );
// source code : ListCondition
public interface ListCondition<T> {
boolean isConditionSatisfied( List2 list, int index, T element );

Hi,
I have the following statement:
private List list = new ArrayList();
why not use private ArrayList list = new
ArrayList()?
I know ArrayList implements List, so list has a wide
scope, right? What's the benefit?
Thanks,
JieBy using the interface you are not tied to a specific implementation.
Later, you may determine that using a LinkedList is more efficient to your specific code and then all you need to do is change the statement to:
private List list = new LinkedList();As long as you are not casting the list reference to ArrayList (or something along those lines) you would not need to change anything else.

SessionAttribute of array list

Hi,
I have a session attribute of an array list with class objects with different values. I know that if i wanted to cast this session attribute to a class i could do so if there were only one object. How do i find a particular object within the array list based on a attribute value so i can assign it to my class? If you have any suggestions, or places to read about this I'd appreciate it.
Thanks!

sorry for the confusion, i figured i'll just show the method that creates the array list and maybe then you'll understand. So once this is created i want to get a particular "account" out of the array list. :
public static ArrayList<Account> selectAccounts()
        QbConnectionPool pool = QbConnectionPool.getInstance();
        Connection connection = pool.getConnection();
        PreparedStatement ps = null;
        ResultSet rs = null;
        String query = "SELECT ListID, Name, FullName, AccountNumber FROM Account";
        try
            ps = connection.prepareStatement(query);
            rs = ps.executeQuery();
            ArrayList<Account> accounts = new ArrayList<Account>();
            while (rs.next())
            {   Account account = new Account();
                account.setListID(rs.getString(1));
                account.setAccountName(rs.getString(2));
                account.setFullName(rs.getString(3));
                account.setAccountNumber(rs.getString(4));
                accounts.add(account);
            return accounts;
        catch(SQLException e)
            e.printStackTrace();
            return null;
        finally
            DBUtil.closeResultSet(rs);
            DBUtil.closePreparedStatement(ps);
            pool.freeConnection(connection);
    }

Hi, my current plans and products include Creative Cloud Photography plan (one-year) and Creative Cloud single-app membership for Photoshop (one-year), I only use photoshop occasionally and for very basic things, are these two plans required for basic p

Hi, my current plans and products include Creative Cloud Photography plan (one-year) and Creative Cloud single-app membership for Photoshop (one-year), I only use photoshop occasionally and for very basic things, are these two plans required for basic photoshop use or am I able to go with one or the other ?

PS is part of the photography plan, so your single app plan is redundant.
Mylenium

Using an array list as a hash map value

Hi,
I have an object which has a "properties" field, which contains certain data for that object.
Most of the time the key/values are both Strings, but in at least one instance, the key is a string, the value needs to be an array list.
The Map is declared as HashMap<String, Object>
when I populate the map, and then attempt to retrieve its value, it seems to work correctly.
But when I try to retrieve the arrayList from another object, using its getter, it doesn't work,
IOW, if I have code like this:
// object created from outside the class where the map is populated
ExampleObject eo = new exampleObject();
eo.getProperties.get("string value that is a key for the map. ");
// if I try to determine the class the value is,
System.out.println("class: " + eo.getProperties,get("string value that is a key for the map. ").getClass());
// the code above indicates the object is a string. I googled and found a suggestion on this forum, that instead of making the map value an arrayList, I should create an object that contains an array list as a field, and then use that new object as the map value. I tried that and had the same problem.
any idea what I'm doing wrong? Hope that's clear...
thanks!!
bp
Edited by: badperson on Aug 13, 2008 9:38 AM

threw this together and it worked fine, so something else is screwed up in my code.
import java.util.*;
public class MapTester {
     private HashMap<String, Object> testMap;
     private ArrayList testList;
     public ArrayList<String> createList(String listName){
          System.out.println("creating list");
          testList = new ArrayList<String>();
          testList.add(listName + " line one");
          testList.add(listName + " line two");
          testList.add(listName + " line three");
          return testList;
     public HashMap<String, Object> createMap(String key, Object value){
          System.out.println("populating map");
          testMap = new HashMap<String, Object>();
          testMap.put(key, value);
          return testMap;
     public static void main(String[] args){
          MapTester mapTester = new MapTester();
          mapTester.createList("List 1");
          mapTester.createMap("listKey", mapTester.getTestList());
          System.out.println("retrieving arrayList");
          System.out.println("map value is type: " + mapTester.getTestMap().get("listKey").getClass());
     public ArrayList getTestList() {
          return testList;
     public HashMap<String, Object> getTestMap() {
          return testMap;
}thanks for the replies
bp

How can I use two drop down lists for one time value?

I want to enter the length of time that someone does an activity in hours and minutes using two drop down lists, then enter them as a single time value (H:i:s) in Mysql.
I've used the basic drop down lists, and a few different variations of the following with no success (seconds is a hidden field with a value of "00"):
GetSQLValueString(strftime('%H:%i:%s', strtotime($_POST["sleeptimemin"]." ".$_POST["sleeptimehr"]." ".$_POST["seconds"])), "date"),
This returns 00:00:16, no matter what is selected on the drop down list.
Any help would be appreciated.

MySQL stores times in human-understandable format, using the 24-hour clock.
GetSQLValueString($_POST['sleeptimehr'] . ':' . $_POST['sleeptimemin'] . ':00', "date"),

How can I use two single-dimensional arrays-one for the titles and array

I want to Use two single-dimensional arrays-one for the titles and one for the ID
Could everyone help me how can i write the code for it?
Flower
public class Video
public static void main(String[] args) throws Exception
int[][] ID =
{ {145,147,148},
{146,149, 150} };
String[][] Titles=
{ {"Barney","True Grit","The night before Christmas"},
{"Lalla", "Jacke Chan", "Metal"} };
int x, y;
int r, c;
System.out.println("List before Sort");
for(c =0; c< 3; ++c)
for(r=0; r< 3; ++ r)
System.out.println("ID:" + ID[c][r]+ "\tTitle: " + Titles[c][r]);
System.out.println("\nAfter Sort:");
for(c =0; c< 3; ++c)
for(r=0; r< 3; ++ r)
System.out.println("ID:" + ID[c][r]+ "\tTitle: " + Titles[c][r]);

This is one of the most bizarre questions I have seen here:
public class Video
public static void main(String[] args) throws Exception
int[] ID = {145,147,148, 146,149, 150};
String[] Titles= {"Barney","True Grit","The night before Christmas", "Lalla", "Jacke Chan", "Metal"};
System.out.println("List before Sort");
for(int i = 0; i < Titles.length; i++)
System.out.println("ID:" + ID[i]+ "\tTitle: " + Titles);
System.out.println("\nAfter Sort:");
for(int i = 0; c < Titles.length; i++)
System.out.println("ID:" + ID[i]+ "\tTitle: " + Titles[i]);
Generally you don't use prefix (++c) operators in you for loop. Use postfix (c++).
Prefix means that it will increment the variable before the loop body is executed. Postfix will cause it to increment after.

I am trying to use two very long (2.5 hour HD) clips in multicam but FCPX only places one clip right after the other and does not create multicam. Is there a limit on clip size for multicam?

I am trying to use two very long (2.5 hour HD clips) and a 2.5 hour audio clip in multicam. One clip and the audio will ceate a multiclip but two clips will not. FCPX simply adds the second clip on at the end of the first. There must be some sort oflimitation on clip length. Is that correct and if so what is it?

The Angle field is not shown in the Inspector's default Basic View. With the clip selected in the event viewer, select the Info tab in the inspector. Change the view of the inspector from the default Basic View to the General View to be able to see the Angle field.
I assume you want to use the audio to do the sync. If FCP X has trouble syncing the audio, you can set a marker at the same chronological point in each clip before creating the multiclip. Then set Angle Syncronization to First Marker on the Angle and keep Use audio for syncronization checked. Your marker only needs to be close to get FCP X started. It will then use the audio to get final sync.

Adding two array lists together and a text file to an array list

I'm having problems coding these two methods... Could someone explain how to do this? I can't find information on it anywhere... :(
"MagazineList" is the class I'm coding in right now, and I already declared "list" as an array list of another class called "Magazine".
public boolean addAll(MagazineList magazines)
       if (list == magazines) {
           return false;
        else {
            list.addAll(magazines);
       return true;
   public boolean addAll(String filename)
       Scanner in = ResourceUtil.openFileScanner(filename);
        if (in == null) {
           return false;
        String line = source.nextLine();
        while (!line.equals("")) {
          list.add(Magazine(source));
       in.close();
   }

I assume "addAll(MagazineList magazines)" is defined in the MagazineList class?
Then,
list.addAll(magazines);probably needs to be something like:
list.addAll(magazines.list);This uses the private variable ( should be private) list from the input MagazineList, and adds all of those Magazine objects to the list in the current MagazineList.
But, yes, describe your problems more clearly, and you'll get better answers more quickly (because people will be able to understand you and give you a suggestion without asking you another question first).

How to read XI Data type in Java code and populate as array list, using UDF

Hi,
How to read XI Data type in Java code and populate as array list, using UDF?
Is there any API using which the XI data types can be read?
Kindly reply.
Richa

Input Structure:
<?xml version="1.0" encoding="UTF-8"?>
<ns0:CustomerCreateResp xmlns:ns0="urn:bp:xi:up:re:cust_mdm:cmdm:pr5:100">
   <CUSTOMER>
      <item>
         <CUSTOMERNO/>
         <MDMCUSTOMER/>
         <CREATE_DATE/>
         <RETURN>
            <TYPE/>
            <MESSAGE/>
         </RETURN>
         <PT_CONTPART_RETURN>
            <item>
               <MDM_CONTACT/>
               <CONTACT/>
            </item>
         </PT_CONTPART_RETURN>
         <PARTNERS>
            <item>
               <CUSTOMERNO/>
               <PARTNER_FUNCTION/>
               <PARTNER_NUMBER/>
               <DEFAULT_PARTNER/>
            </item>
         </PARTNERS>
      </item>
   </CUSTOMER>
</ns0:CustomerCreateResp>
Output structure
(Sample output structure.This actually needs to be mapped and generated using UDF)
<?xml version="1.0" encoding="UTF-8"?>
<ns1:updateCustomer xmlns:ns1="urn:xiSericeVi"><ns1:customer><ns2:ArrayList xmlns:ns2="java:sap/standard">[]</ns2:ArrayList></ns1:customer><ns1:name>2344566</ns1:name></ns1:updateCustomer>

Using a MergeSort with an Array List

Hi. I'm working on a program that does a MergeSort using an array list. The user is asked to enter 2 arrays of increasing numbers, and my program will create a 3rd array that merges the 2 original ones.
I think I've almost got it down, but I seem to be running into an OutOfBounds error, and I'm not sure why. I've tried changing the initial values of some of my variables to no avail.
I'm kinda new to Java so be gentle.
import java.util.ArrayList;
import cs1.Keyboard;
import java.util.*;
public class MergeSort3
     public static void main (String[] args)
          ArrayList<Integer> ary1 = new ArrayList<Integer>();
          ArrayList<Integer> ary2 = new ArrayList<Integer>();
          ArrayList<Integer> ary3 = new ArrayList<Integer>();
          int input=0, count=0, ary1count=0, ary2count=0, temp=0;
          boolean ok=true;
          while(ok)
               System.out.println("Enter integers in Array1 from smallest to largest. (-1 to stop): ");
               input = Keyboard.readInt();
               if(input==-1)
                    ok=false;
               else
                    ary1.add(input);
          ok=true;
          while(ok)
               System.out.println("Enter integers in Array2 from smallest to largest. (-1 to stop): ");
               input = Keyboard.readInt();
               if(input==-1)
                    ok=false;
               else
                    ary2.add(input);
          System.out.println("Size of array 1: " + ary1.size());
          System.out.println("Size of array 2: " + ary2.size());
          int ary3size=ary1.size()+ary2.size();
          System.out.println(ary3size);
          while(count<ary3size)
               if(ary1.get(ary1count)<=ary2.get(ary2count) && ary1count<ary1.size() && ary2count<ary2.size())
                    ary3.add(ary1.get(ary1count));
                    ary1count++;
                    count++;
                    System.out.println(ary3);
               else
                    temp=ary2.get(ary2count);
                    ary3.add(temp);
                    ary2count++;
                    temp=0;
                    count++;
               while(ary1count>=ary1.size() && ary2count<ary2.size())
                    ary3.add(ary2.get(ary2count));
                    ary2count++;
          System.out.println(ary3);
}

We can't run the program since you're using a non-standard class, csi.Keyboard.
Reduce the problem to a program that only uses standard Java classes, post the new program, AND identify the line that's throwing the error (not just the line number!) and post the exact error message.

Having trouble figuring out how to save the original photo after I've cropped it - i.e. I want to create a headshot of my husband from a photo of the two of us, but I also want to keep the original. Seems very basic, but can't seem to figure it out. Any h

Having trouble figuring out how to save the original photo after I've cropped it - i.e. I want to create a headshot of my husband from a photo of the two of us, but I also want to keep the original. Seems very basic, but can't seem to figure it out. Any help would be great!

Use File >> Save As
Choose a different file name so as not to overwrite the original and don't save any changes when closing the original.

Help needed Displaying ALV Secondary list without using oops concept

Hi Experts
Help needed Displaying ALV Secondary list without using oops concept.
its urgent
regds
rajasekhar

hi chk this code
******************TABLES DECLARATION*****************
TABLES : VBAP,MARA.
*****************TYPE POOLS**************************
TYPE-POOLS : SLIS.
****************INTERNAL TABLES**********************
DATA : BEGIN OF IT_VBAP OCCURS 0,
VBELN LIKE VBAP-VBELN, "SALES DOCUMENT
POSNR LIKE VBAP-POSNR, "SALES DOCUMENT ITEM
MATNR LIKE VBAP-MATNR, "MATERIAL NUMBER
END OF IT_VBAP.
****************TEMPORARY VARIABLES******************
DATA : V_VBELN LIKE VBAP-VBELN."SALES DOCUMENT
DATA : V_MTART LIKE MARA-MTART. "MATERIAL TYPE
*****************FIELD CATALOG***********************
DATA : IT_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV,
       WA_FIELDCAT TYPE SLIS_FIELDCAT_ALV.
****************LAYOUT*******************************
DATA : WA_LAYOUT TYPE SLIS_LAYOUT_ALV.
***************VARIANT*******************************
DATA : G_VARIANT LIKE DISVARIANT.
****************SAVE*********************************
DATA : G_SAVE(1) TYPE C.
*****************EVENTS******************************
DATA : XS_EVENTS TYPE SLIS_ALV_EVENT,
       G_EVENTS TYPE SLIS_T_EVENT.
******************PF STATUS**************************
DATA : PF_STATUS TYPE SLIS_FORMNAME VALUE 'SET_PF_STATUS'.
******************USER COMMAND************************
DATA : USER_COMMAND TYPE SLIS_FORMNAME VALUE 'SET_USER_COMMAND',
       R_UCOMM LIKE SY-UCOMM.
****************SELECTION SCREEN************************
SELECT-OPTIONS : S_VBELN FOR VBAP-VBELN.
***************AT SELECTION SCREEN*********************
AT SELECTION-SCREEN.
PERFORM VALIDATE.
**************START-OF-SELECTION**************************
START-OF-SELECTION.
PERFORM GET_DETAILS.
PERFORM FIELDCAT.
PERFORM LAYOUT.
PERFORM VARIANT.
PERFORM SAVE.
PERFORM EVENTS.
PERFORM ALV_DISPLAY.
*********************FORMS*******************************************
*&      Form validate
      text
--> p1        text
<-- p2        text
FORM VALIDATE .
SELECT SINGLE VBELN
                FROM VBAP
                INTO V_VBELN
                WHERE VBELN IN S_VBELN.
IF SY-SUBRC <> 0.
    MESSAGE E000 WITH 'enter valid vbeln'.
ENDIF.
ENDFORM.                    " validate
*&      Form get_details
      text
--> p1        text
<-- p2        text
FORM GET_DETAILS .
SELECT VBELN
         POSNR
         MATNR
         FROM VBAP
         INTO TABLE IT_VBAP
         WHERE VBELN IN S_VBELN.
IF SY-SUBRC <> 0.
    MESSAGE E000 WITH 'no details found'.
ENDIF.
ENDFORM.                    " get_details
*&      Form fieldcat
      text
--> p1        text
<-- p2        text
FORM FIELDCAT .
WA_FIELDCAT-TABNAME = 'IT_VBAP'.
WA_FIELDCAT-FIELDNAME = 'VBELN'.
WA_FIELDCAT-OUTPUTLEN = 10.
WA_FIELDCAT-SELTEXT_L = 'SALES DOC'.
APPEND WA_FIELDCAT TO IT_FIELDCAT.
CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'IT_VBAP'.
WA_FIELDCAT-FIELDNAME = 'POSNR'.
WA_FIELDCAT-OUTPUTLEN = 6.
WA_FIELDCAT-SELTEXT_L = 'ITEM'.
APPEND WA_FIELDCAT TO IT_FIELDCAT.
CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'IT_VBAP'.
WA_FIELDCAT-FIELDNAME = 'MATNR'.
WA_FIELDCAT-OUTPUTLEN = 18.
WA_FIELDCAT-SELTEXT_L = 'MATERIAL NO'.
APPEND WA_FIELDCAT TO IT_FIELDCAT.
CLEAR WA_FIELDCAT.
ENDFORM.                    " fieldcat
*&      Form LAYOUT
      text
--> p1        text
<-- p2        text
FORM LAYOUT .
WA_LAYOUT-ZEBRA = 'X'.
ENDFORM.                    " LAYOUT
*&      Form VARIANT
      text
--> p1        text
<-- p2        text
FORM VARIANT .
CLEAR G_VARIANT.
G_VARIANT-REPORT = SY-REPID.
ENDFORM.                    " VARIANT
*&      Form SAVE
      text
--> p1        text
<-- p2        text
FORM SAVE .
CLEAR G_SAVE.
G_SAVE = 'A'.
ENDFORM.                    " SAVE
*&      Form EVENTS
      text
--> p1        text
<-- p2        text
FORM EVENTS .
CLEAR XS_EVENTS.
XS_EVENTS-NAME = SLIS_EV_TOP_OF_PAGE.
XS_EVENTS-FORM = 'TOP_OF_PAGE'.
APPEND XS_EVENTS TO G_EVENTS.
ENDFORM.                    " EVENTS
*&      Form TOP_OF_PAGE
      text
FORM TOP_OF_PAGE.
WRITE :/ ' INTELLI GROUP'.
ENDFORM.                    "TOP_OF_PAGE
*&      Form ALV_DISPLAY
      text
--> p1        text
<-- p2        text
FORM ALV_DISPLAY .
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
   EXPORTING
I_INTERFACE_CHECK              = ' '
I_BYPASSING_BUFFER             =
I_BUFFER_ACTIVE                = ' '
     I_CALLBACK_PROGRAM             = SY-REPID
     I_CALLBACK_PF_STATUS_SET       = PF_STATUS
     I_CALLBACK_USER_COMMAND        = USER_COMMAND
I_STRUCTURE_NAME               =
     IS_LAYOUT                      = WA_LAYOUT
     IT_FIELDCAT                    = IT_FIELDCAT
IT_EXCLUDING                   =
IT_SPECIAL_GROUPS              =
IT_SORT                        =
IT_FILTER                      =
IS_SEL_HIDE                    =
I_DEFAULT                      = 'X'
     I_SAVE                         = G_SAVE
     IS_VARIANT                     = G_VARIANT
     IT_EVENTS                      = G_EVENTS
IT_EVENT_EXIT                  =
IS_PRINT                       =
IS_REPREP_ID                   =
I_SCREEN_START_COLUMN          = 0
I_SCREEN_START_LINE            = 0
I_SCREEN_END_COLUMN            = 0
I_SCREEN_END_LINE              = 0
IMPORTING
E_EXIT_CAUSED_BY_CALLER        =
ES_EXIT_CAUSED_BY_USER         =
    TABLES
      T_OUTTAB                       = IT_VBAP
   EXCEPTIONS
     PROGRAM_ERROR                  = 1
     OTHERS                         = 2
IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDFORM.                    " ALV_DISPLAY
*&      Form SET_PF_STATUS
      text
FORM SET_PF_STATUS USING EXTAB TYPE SLIS_T_EXTAB.
SET PF-STATUS 'Z50651_PFSTATUS' EXCLUDING EXTAB.
ENDFORM.                    "SET_PF_STATUS
*&      Form SET_USER_COMMAND
      text
FORM SET_USER_COMMAND USING R_UCOMM
                            RS_SELFIELD TYPE SLIS_SELFIELD.
CASE R_UCOMM.
    WHEN 'DC'.
      READ TABLE IT_VBAP INDEX RS_SELFIELD-TABINDEX.
      IF SY-SUBRC = 0.
        SELECT SINGLE MTART
                      FROM MARA
                      INTO V_MTART
                      WHERE MATNR = IT_VBAP-MATNR.
        IF SY-SUBRC <> 0.
   MESSAGE E000 WITH 'NO MATERIAL DESCRIPTION FOR SELECTED MATERIAL NO'.
        ELSE.
          WRITE :/ 'MATERIAL NO :',IT_VBAP-MATNR.
          WRITE :/ 'MATERIAL TYPE :' , V_MTART.
        ENDIF.
      ENDIF.
    WHEN 'BACK'.
      LEAVE TO SCREEN 0.
    WHEN 'EXIT'.
      LEAVE TO SCREEN 0.
    WHEN 'CLOSE'.
      CALL TRANSACTION 'SE38'.
ENDCASE.
REPORT Z_ALV_INTERACTIVE MESSAGE-ID ZMSG_50651
                                LINE-SIZE 100
                                LINE-COUNT 60
                                NO STANDARD PAGE HEADING.
******************TABLES DECLARATION*****************
TABLES : VBAP,MARA.
*****************TYPE POOLS**************************
TYPE-POOLS : SLIS.
****************INTERNAL TABLES**********************
DATA : BEGIN OF IT_VBAP OCCURS 0,
VBELN LIKE VBAP-VBELN, "SALES DOCUMENT
POSNR LIKE VBAP-POSNR, "SALES DOCUMENT ITEM
MATNR LIKE VBAP-MATNR, "MATERIAL NUMBER
END OF IT_VBAP.
****************TEMPORARY VARIABLES******************
DATA : V_VBELN LIKE VBAP-VBELN."SALES DOCUMENT
DATA : V_MTART LIKE MARA-MTART. "MATERIAL TYPE
*****************FIELD CATALOG***********************
DATA : IT_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV,
       WA_FIELDCAT TYPE SLIS_FIELDCAT_ALV.
****************LAYOUT*******************************
DATA : WA_LAYOUT TYPE SLIS_LAYOUT_ALV.
***************VARIANT*******************************
DATA : G_VARIANT LIKE DISVARIANT.
****************SAVE*********************************
DATA : G_SAVE(1) TYPE C.
*****************EVENTS******************************
DATA : XS_EVENTS TYPE SLIS_ALV_EVENT,
       G_EVENTS TYPE SLIS_T_EVENT.
******************PF STATUS**************************
DATA : PF_STATUS TYPE SLIS_FORMNAME VALUE 'SET_PF_STATUS'.
******************USER COMMAND************************
DATA : USER_COMMAND TYPE SLIS_FORMNAME VALUE 'SET_USER_COMMAND',
       R_UCOMM LIKE SY-UCOMM.
****************SELECTION SCREEN************************
SELECT-OPTIONS : S_VBELN FOR VBAP-VBELN.
***************AT SELECTION SCREEN*********************
AT SELECTION-SCREEN.
PERFORM VALIDATE.
**************START-OF-SELECTION**************************
START-OF-SELECTION.
PERFORM GET_DETAILS.
PERFORM FIELDCAT.
PERFORM LAYOUT.
PERFORM VARIANT.
PERFORM SAVE.
PERFORM EVENTS.
PERFORM ALV_DISPLAY.
*********************FORMS*******************************************
*&      Form validate
      text
--> p1        text
<-- p2        text
FORM VALIDATE .
SELECT SINGLE VBELN
                FROM VBAP
                INTO V_VBELN
                WHERE VBELN IN S_VBELN.
IF SY-SUBRC <> 0.
    MESSAGE E000 WITH 'enter valid vbeln'.
ENDIF.
ENDFORM.                    " validate
*&      Form get_details
      text
--> p1        text
<-- p2        text
FORM GET_DETAILS .
SELECT VBELN
         POSNR
         MATNR
         FROM VBAP
         INTO TABLE IT_VBAP
         WHERE VBELN IN S_VBELN.
IF SY-SUBRC <> 0.
    MESSAGE E000 WITH 'no details found'.
ENDIF.
ENDFORM.                    " get_details
*&      Form fieldcat
      text
--> p1        text
<-- p2        text
FORM FIELDCAT .
WA_FIELDCAT-TABNAME = 'IT_VBAP'.
WA_FIELDCAT-FIELDNAME = 'VBELN'.
WA_FIELDCAT-OUTPUTLEN = 10.
WA_FIELDCAT-SELTEXT_L = 'SALES DOC'.
APPEND WA_FIELDCAT TO IT_FIELDCAT.
CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'IT_VBAP'.
WA_FIELDCAT-FIELDNAME = 'POSNR'.
WA_FIELDCAT-OUTPUTLEN = 6.
WA_FIELDCAT-SELTEXT_L = 'ITEM'.
APPEND WA_FIELDCAT TO IT_FIELDCAT.
CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'IT_VBAP'.
WA_FIELDCAT-FIELDNAME = 'MATNR'.
WA_FIELDCAT-OUTPUTLEN = 18.
WA_FIELDCAT-SELTEXT_L = 'MATERIAL NO'.
APPEND WA_FIELDCAT TO IT_FIELDCAT.
CLEAR WA_FIELDCAT.
ENDFORM.                    " fieldcat
*&      Form LAYOUT
      text
--> p1        text
<-- p2        text
FORM LAYOUT .
WA_LAYOUT-ZEBRA = 'X'.
ENDFORM.                    " LAYOUT
*&      Form VARIANT
      text
--> p1        text
<-- p2        text
FORM VARIANT .
CLEAR G_VARIANT.
G_VARIANT-REPORT = SY-REPID.
ENDFORM.                    " VARIANT
*&      Form SAVE
      text
--> p1        text
<-- p2        text
FORM SAVE .
CLEAR G_SAVE.
G_SAVE = 'A'.
ENDFORM.                    " SAVE
*&      Form EVENTS
      text
--> p1        text
<-- p2        text
FORM EVENTS .
CLEAR XS_EVENTS.
XS_EVENTS-NAME = SLIS_EV_TOP_OF_PAGE.
XS_EVENTS-FORM = 'TOP_OF_PAGE'.
APPEND XS_EVENTS TO G_EVENTS.
ENDFORM.                    " EVENTS
*&      Form TOP_OF_PAGE
      text
FORM TOP_OF_PAGE.
WRITE :/ ' INTELLI GROUP'.
ENDFORM.                    "TOP_OF_PAGE
*&      Form ALV_DISPLAY
      text
--> p1        text
<-- p2        text
FORM ALV_DISPLAY .
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
   EXPORTING
I_INTERFACE_CHECK              = ' '
I_BYPASSING_BUFFER             =
I_BUFFER_ACTIVE                = ' '
     I_CALLBACK_PROGRAM             = SY-REPID
   I_CALLBACK_PF_STATUS_SET         = PF_STATUS
     I_CALLBACK_USER_COMMAND        = USER_COMMAND
I_STRUCTURE_NAME               =
     IS_LAYOUT                      = WA_LAYOUT
     IT_FIELDCAT                    = IT_FIELDCAT
IT_EXCLUDING                   =
IT_SPECIAL_GROUPS              =
IT_SORT                        =
IT_FILTER                      =
IS_SEL_HIDE                    =
I_DEFAULT                      = 'X'
     I_SAVE                         = G_SAVE
    IS_VARIANT                      = G_VARIANT
     IT_EVENTS                      = G_EVENTS
IT_EVENT_EXIT                  =
IS_PRINT                       =
IS_REPREP_ID                   =
I_SCREEN_START_COLUMN          = 0
I_SCREEN_START_LINE            = 0
I_SCREEN_END_COLUMN            = 0
I_SCREEN_END_LINE              = 0
IMPORTING
E_EXIT_CAUSED_BY_CALLER        =
ES_EXIT_CAUSED_BY_USER         =
    TABLES
      T_OUTTAB                       = IT_VBAP
   EXCEPTIONS
     PROGRAM_ERROR                  = 1
     OTHERS                         = 2
IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDFORM.                    " ALV_DISPLAY
*&      Form SET_PF_STATUS
      text
FORM SET_PF_STATUS USING EXTAB TYPE SLIS_T_EXTAB.
SET PF-STATUS 'STANDARD' EXCLUDING EXTAB.
ENDFORM.                    "SET_PF_STATUS
*&      Form SET_USER_COMMAND
      text
FORM SET_USER_COMMAND USING R_UCOMM
                            RS_SELFIELD TYPE SLIS_SELFIELD.
CASE R_UCOMM.
    WHEN 'DC'.
      READ TABLE IT_VBAP INDEX RS_SELFIELD-TABINDEX.
      IF SY-SUBRC = 0.
        SELECT SINGLE MTART
                      FROM MARA
                      INTO V_MTART
                      WHERE MATNR = IT_VBAP-MATNR.
        IF SY-SUBRC <> 0.
   MESSAGE E000 WITH 'NO MATERIAL DESCRIPTION FOR SELECTED MATERIAL NO'.
        ELSE.
          WRITE :/ 'MATERIAL NO :',IT_VBAP-MATNR.
          WRITE :/ 'MATERIAL TYPE :' , V_MTART.
SUBMIT SLIS_DUMMY WITH P_MATNR EQ IT_VBAP-MATNR
                    WITH P_MTART EQ V_MTART.
        ENDIF.
      ENDIF.
    WHEN 'BACK'.
      LEAVE TO SCREEN 0.
    WHEN 'EXIT'.
      LEAVE TO SCREEN 0.
    WHEN 'CLOSE'.
      CALL TRANSACTION 'SE38'.
ENDCASE.
plz reward if useful

How to use two dimensional array in custom.pll

HI
How to use two dimensional arrays in custom.pll
I tried by the following way .
type ship_array is table of number index by binary_integer;
type vc_array is table of ship_array index by binary_integer;
But I am getting the error as that
A plsql table may not contain a table or a record with composite fields.
Please tell me the way how to use them

which forms version are you using? two dimensional arrays are available in >= 9i if memory serves.
regards

Very Basic.. Array list Concept.. using two arraylist..

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