Printing an array of objects

Can someone help me write a method that will print out an array of objects,
thanks

What happens with Smile2Me?
If you want to print your "card" i think you should override his "toString" method in order to print there the data thast you want. If the "Card" class have two string to be printed (for example), you could write this method:
public String toString() {
return myString1 + " ; " + myString2;
and then when you print them you will get this information printed.
Hope this helps
Zerjio

Similar Messages

Printing a listing from an array of objects

I know I'm missing something simple here but for the life of me I can't spot it. The code below should print a list of student names to the screen. At the moment it only prints the last name entered into the array. I will kick myself when I see the answer but can anyone suss this out ? Many thanks for any help.
// A Program called StudentDetails3.java which inserts student names into an array according to
// a calculated hash Index and then prints out the name list in this order
import javax.swing.JOptionPane;
public class StudentDetails3
// Member Section
// Private members
private static String studentName;
// Public members
public static String input = JOptionPane.showInputDialog(" Please enter the number of students in the class : - ");
public static int maxNum = Integer.parseInt(input);
public static int hashIndex = 0;
// Constructor Section
StudentDetails3 ( String newStudentName )
studentName = newStudentName.toUpperCase();
// Method Section
public int hashCalc()
int total = 0;
for( int charNo = 0; charNo < studentName.length(); charNo ++ )
char letter = studentName.charAt(charNo);
int asciiVal = letter;
     if( studentName.charAt(charNo) ==' ')
     asciiVal = 0;
     total = total + asciiVal;
hashIndex = total % maxNum;
return hashIndex;
public void output()
System.out.println(" The student's name and hash index is " + studentName + " " + hashIndex );
static class DetailsStorage
// Member Section containing the array into which the student objects will be inserted
private Object [] array;
private int current;
// Constructor
DetailsStorage ( int noOfStudents )
array = new Object[ noOfStudents ];
current = 0;
// Method for adding name to array
public void add ( Object StudentDetails3 )
{ if ( array [ hashIndex] == null )
array [ hashIndex ] = StudentDetails3;
else if ( (hashIndex + 1) <= (array.length-1) )
do
{ hashIndex = ( hashIndex + 1 );
     if ( array [ hashIndex ] == null )
     {   array [ hashIndex ] = StudentDetails3;
     break;
} while ( (hashIndex + 1) <= (array.length-1) );
     else
          for ( int firstLp = 0; firstLp < array.length; firstLp ++ )
     if ( array [ firstLp ] == null )
     {   array [ firstLp ] = StudentDetails3;
               break;
public void printOut ( )
{   int loop = 0;
System.out.println ( " Name\t\tCourse " );
System.out.println ( "____\t\t_________ " );
     for ( loop = 0; loop < array.length; loop ++ )
     System.out.println ( ( ( StudentDetails3 ) array [ loop ] ).studentName );
// Main Program for testing
public static void main( String[] args )
{   String name;
// Obtain list of names from the user
DetailsStorage nameList = new DetailsStorage( maxNum );
for( int lp = 0; lp < maxNum; lp++ )
{   name = JOptionPane.showInputDialog(" Please enter the name of student in full ( e.g. Gareth Edwards )");
StudentDetails3 newDetails = new StudentDetails3( name );
newDetails.hashCalc();
     nameList.add ( newDetails );
newDetails.output();
nameList.printOut();
System.exit(0);
}

You've made the student name a static field, which means that there's only one for the whole class.
So the last one you input is the one you use for everybody.

Displaying the contents of an array of objects

Hello All,
My Java teacher gave us a challenge and I'm stumped. The teacher wants us to display the contents of the array in the main menthod. The original code is as follows:
public class TestObjects
     public static void main ( String args[] )
          Thing[] thingArray = { new Thing(4), new Thing(7) };
}I understand that the elements of the array are objects, and each one has a value assigned to it. The following code was my first attempt at a solution:
public class TestObjects
     public static void main ( String args[] )
          Thing[] thingArray = { new Thing(4), new Thing(7) };
                                for ( int i = 0; i < thingArray.length; i++)
                                   System.out.println( thingArray );
}To which I'm given what amounts to garbage output. I learned from reading about that output that its basically displaying the memory location of the array, and the the contents of the array. There was mention of overriding or bypassing a method in System.out.println, but I don't believe that we're that far advanced yet. Any thoughts? I know I have to get at the data fields in the objects of the array, but i'm not having an easy time figuring it out. Thanks very much in advance!

robrom78 wrote:
public class TestObjects
     public static void main ( String args[] )
          Thing[] thingArray = { new Thing(4), new Thing(7) };
for ( int i = 0; i < thingArray.length; i++)
System.out.println( thingArray );
Note that you're trying to print the entire array at every loop iteration. That's probably not what you meant to do.
You probably meant to do something more like
                             System.out.println( thingArray[i] );Also, note that the java.util.Arrays class has a toString method that might be useful.
To which I'm given what amounts to garbage output. It's not garbage. It's the default output to toString() for arrays, which is in fact the toString() defined for java.lang.Object (and inherited by arrays).
I learned from reading about that output that its basically displaying the memory location of the array, and the the contents of the array.It displays a default result that is vaguely related to the memory, but probably shouldn't be thought of us such. Think of it as identifying the type of object, and a value that differentiates it from other objects of the same type.
By the way I assume you mean "+not+ the contents of the array" above. If so, that is correct.
There was mention of overriding or bypassing a method in System.out.println, but I don't believe that we're that far advanced yet. Any thoughts? No, you don't override a method in println; actually methods don't contain other methods directly. You probably do need to override toString in Thing.
I know I have to get at the data fields in the objects of the array, but i'm not having an easy time figuring it out. You can get to the individual objects in the array just by dereferencing it, as I showed you above.
But I suspect that won't be sufficient. Most likely, Thing doesn't have a toString method defined. This means that you'll end up with very similar output, but it will say "Thing" instead of "[Thing" and the numbers to the right of the "@" will be different.
You'll need to override the toString() method in Thing to get the output you want.

How to pass a array of object to oracle procedure using callable

Hi,
I am calling a oracle stored procedure using callable statement which has IN and OUT parameter of same type.
IN and OUT are array of objects. (ie) IN parameter as Array of Objects and OUT parameter as Array of Objects
here are the steps i have done as advised from oracle forum. correct me if i am in wrong direction
ORACLE types and Stored Procedure
CREATE OR REPLACE
TYPE APPS.DEPARTMENT_TYPE AS OBJECT (
DNO NUMBER (10),
NAME VARCHAR2 (50),
LOCATION VARCHAR2 (50)
CREATE OR REPLACE
TYPE APPS.DEPT_ARRAY AS TABLE OF department_type;
CREATE OR REPLACE package body APPS.insert_object
IS
PROCEDURE insert_object_prc (d IN dept_array, d2 OUT dept_array)
IS
BEGIN
d2 := dept_array ();
FOR j IN 1 .. d.COUNT
LOOP
d2.EXTEND;
d2 (j) := department_type (d (j).dno, d (j).name, d(j).location);
END LOOP;
END insert_object_prc;
END insert_object;
JAVA CODE
Value Object
package com.custom.vo;
public class Dep {
public int empNo;
public String depName;
public String location;
public int getEmpNo() {
return empNo;
public void setEmpNo(int empNo) {
this.empNo = empNo;
public String getDepName() {
return depName;
public void setDepName(String depName) {
this.depName = depName;
public String getLocation() {
return location;
public void setLocation(String location) {
this.location = location;
to call stored procedure
package com.custom.callable;
import com.custom.vo.Dep;
import oracle.jdbc.OracleCallableStatement;
import oracle.jdbc.OracleConnection;
import oracle.jdbc.OracleTypes;
import oracle.jdbc.pool.OracleDataSource;
import oracle.sql.ARRAY;
import oracle.sql.ArrayDescriptor;
import oracle.sql.Datum;
import oracle.sql.STRUCT;
import oracle.sql.StructDescriptor;
public class CallableArrayTryOut {
private static OracleDataSource odcDataSource = null;
public static void main(String[] args) {
OracleCallableStatement callStatement = null;
OracleConnection connection = null;
try {
odcDataSource = new OracleDataSource();
odcDataSource
.setURL("......");
odcDataSource.setUser("....");
odcDataSource.setPassword("....");
connection = (OracleConnection) odcDataSource.getConnection();
} catch (Exception e) {
System.out.println("DB connection Exception");
e.printStackTrace();
Dep[] dep = new Dep[2];
dep[0] = new Dep();
dep[0].setEmpNo(100);
dep[0].setDepName("aaa");
dep[0].setLocation("xxx");
dep[1] = new Dep();
dep[1].setEmpNo(200);
dep[1].setDepName("bbb");
dep[1].setLocation("yyy");
try {
StructDescriptor structDescriptor = new StructDescriptor(
"APPS.DEPARTMENT_TYPE", connection);
STRUCT priceStruct = new STRUCT(structDescriptor, connection, dep);
STRUCT[] priceArray = { priceStruct };
ArrayDescriptor arrayDescriptor = ArrayDescriptor.createDescriptor(
"APPS.DEPT_ARRAY", connection);
ARRAY array = new ARRAY(arrayDescriptor, connection, priceArray);
callStatement = (OracleCallableStatement) connection
.prepareCall("{call insert_object.insert_object_prc(?,?)}");
((OracleCallableStatement) callStatement).setArray(1, array);
callStatement.registerOutParameter(2, OracleTypes.ARRAY,
"APPS.DEPT_ARRAY");
callStatement.execute();
ARRAY outArray = callStatement.getARRAY(2);
Datum[] datum = outArray.getOracleArray();
for (int i = 0; i < datum.length; i++) {
oracle.sql.STRUCT os = (oracle.sql.STRUCT) datum[0];
Object[] a = os.getAttributes();
for (int j = 0; j < a.length; j++) {
System.out.print("Java Data Type :"
+ a[j].getClass().getName() + "Value :" + a[j]
+ "\n");
connection.commit();
callStatement.close();
} catch (Exception e) {
System.out.println("Mapping Error");
e.printStackTrace();
THE ERROR
Mapping Errorjava.sql.SQLException: Inconsistent java and sql object types
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.check_error(DBError.java:1130)
at oracle.sql.StructDescriptor.toOracleArray(StructDescriptor.java:823)
at oracle.sql.StructDescriptor.toArray(StructDescriptor.java:1735)
at oracle.sql.STRUCT.<init>(STRUCT.java:136)
at com.custom.callable.CallableArrayTryOut.main(CallableArrayTryOut.java:48)

You posted this question in the wrong forum section. There is one dedicated to Java that was more appropriate.
Anyway here is a link that describes what you should do.
http://download.oracle.com/docs/cd/B19306_01/java.102/b14355/oraarr.htm#i1049179
Bye Alessandro

Array of Object Refs

I am doing exercises in a book (a couple books) to learn Java. I am a procedural pgmr and want to learn Java.
Question 3 in Chapter 4 says:
Create an array of object references of the class you created in Exercise 2, but don't actually create objects to assign into the array. When you run the program, notice whether the initialization messages from the constructor calls are printed.
In exercise 2, I created an created an overloaded constructor. There are two constructors one that takes an argument and one that doesn't. I think I understand that I am being asked to look to see the values of the variables before the object is actually created but after initialization.
My question is that I am not sure I understand what is being asked in question 3. I have to create an array of object references. I understand object references to be the varable names that hole the contents of the object. I don't understand what I am supposed to put into each (the two) elements of the array.
Here is program written for exercise 2:
//: c04:J402.java
/* This has overloaded constructors. However, the argument must be given. Without it, there is an exception at runtime. */
class Bird {
Bird() {
System.out.println("The object is an egg");
Bird(String age) {
System.out.println("The object is " + age + " months old");
public class J402 {
public static void main(String[] args) {
String age = args[0];
new Bird(age);
} ///:~
Thank you so much for any help.

My question is that I am not sure I understand what is
being asked in question 3. I have to create an array
of object references. I understand object references
to be the varable names that hole the contents of the
object. I don't understand what I am supposed to put
into each (the two) elements of the array.
You need to make three different concepts clear to yourself: objects, object references, and reference variables.
Objects are objects are objects. They are self contained entities that live somewhere in the memory. But, as you can't manipulate the memory directly (there are many good reasons for that), you can't manipulate objects directly.
To get to objects you need references (or pointers). A reference is like a memory address. It normally points to the memory location of an object, but if the reference can also be a special 'null' reference that doesn't point to any object (or to every possible object, depending on how you want to look at it). The JVM takes care of talking to the underlaying object through the reference.
An object can have many references pointing to it but a reference can point to only one object (or no / any object in the case of a null reference).
Reference variables, then, are the ones you have in source code. Here's an example of a reference variable:Bird tweety;
tweety = new Bird("I thought I saw a pussy cat!");(given a hypotetical class that can take a String object as an argument to the constructor)
"tweety" is a reference variable. A reference variable is a variable that can hold a reference -- surprise! :). If not set to any particular reference, it's value may be null. If you now do something likeBird bird2 = tweety;
tweety = new Bird();you first define a new ref. variable "bird2" and set its value to tweety's ref. Then you reset the var. tweety to point to a new Bird object. What happens to bird2? Nothing!! ... but if instead of "tweety = new Bird();" you had written "tweety.setChirp("TWEET!!!");" and then called bird2.chirp(), it would have chirped with "TWEET!!!" because the references of bird2 and tweety point to the same object.
But, you can have references outside reference variables. In reference arrays (or "object arrays", the terminology can be confusing), for instance. Then, the codeBird[] flock = new Bird[2];0) Creates, allocates and initializes a new reference array object.
1) Creates a new reference variable called "flock" and assigns it to a reference that points to the object that was created in 0).
2) Creates 2 more references to Bird objects, initially set to null. No further objects are created. These references can be used like reference variables through flock[0] and flock[1].
(not necessarily in this order)
Now this should answer the excersise 3. The references of flock[0] and flock[1] are left as null and they don't point to any objects - They will only if you do something like "flock[0] = new Bird("chirp!");" or "flock[1] = tweety;"

Passing an array of objects to a method.

Hi I'm building a program to act as a CD Collection Database. An array of objects represents the entries: Artist, Album and NUmber of Tracks. What I want to do is in the Menu, user to choose wether he or she wants to Add new CD to collection, print or quit, if he/she does then I call a method addNewEntry, to which i pass the array of objects called array, and I want the user to enter the entries each in turn, after that i want the program to return to the method Menu and ask if he or she wants to quit, print or add new cd. The idea is that the details entered already would be contained in the array of objects [0], so the next set of details go to [1] and then to [2] and so on. I have build up the code at this stage but i get an error while copmiling and im totally stuck. Im a beginner in Java.
Here is the code:
//by Andrei Souchinski
//Mini Project: CD Collection Database
//Designed for a grade F
//Defining new class of objects to represent CD database entries.
//A database entry consists of the artist name, the album name and number of tracks.
//A single entry can be entered by the user typing the details in and the entry can be printed out.
import javax.swing.*;
import java.util.*;
public class MiniProject
     public static void main (String[] args)
          System.out.println("\tCD Collection Database\n");
          System.out.println("1. Add new Compact Disk to the Database");
          System.out.println("2. Print out current database entries");
          System.out.println("3. Quit\n");
          theMenu();
     public static void theMenu()
          CompactDisk [] array = new CompactDisk[20];
          String menu;
          menu = JOptionPane.showInputDialog("What would you like to do?");
          if (menu.equals ("3"))
               JOptionPane.showMessageDialog(null, "Thank You For Using our Service! \nGoodbye!");
               System.exit(0);
          if (menu.equals ("2"))
          if (menu.equals ("1"))
          addNewEntry(array);
          else
               JOptionPane.showMessageDialog(null, "Please select your choice form the menu");
               theMenu();
     public int addNewEntry(int newcd[])
               int i;
               newcd[i] = (JOptionPane.showInputDialog("Please enter the name of the Artist"));
               newcd[i] = (JOptionPane.showInputDialog("Please enter the name of the Album"));
               newcd[i] = (Integer.parseInt (JOptionPane.showInputDialog("Please enter the number of tracks on this album")));
//A Compact Disk entry consists of three attributes: artist name, album and number of tracks
class CompactDisk
     public String artistname; //Instance variables for artistname, albumname and numberoftracks.
     public String albumname;
     public int numberoftracks;
     public CompactDisk(String n, String a, int t)
     artistname = n; //Stores the 1st argument passed after "new Dates" into day
     albumname = a; //Stores the 2nd argument passed after "new Dates" into month
     numberoftracks = t; //Stores the 3rd argument passed after "new Dates" into year
     //When called from the main method, prints the contents of
     //artistname, albumname and numberoftracks on to the screen.
     public void printCompactDisk ()
               String output = "\n " + artistname + "\n " + albumname + "\n " + numberoftracks;
               System.out.println(output);
}

//by Andrei Souchinski
//Mini Project: CD Collection Database
//Designed for a grade F
//Defining new class of objects to represent CD database entries.
//A database entry consists of the artist name, the album name and number of tracks.
//A single entry can be entered by the user typing the details in and the entry can be printed out.
import javax.swing.*;
import java.util.*;
public class MiniProject
     public static void main (String[] args)
          System.out.println("\tCD Collection Database\n");
          System.out.println("1. Add new Compact Disk to the Database");
          System.out.println("2. Print out current database entries");
          System.out.println("3. Quit\n");
          theMenu();
     public static void theMenu()
          String menu;
          menu = JOptionPane.showInputDialog("What would you like to do?");
          if (menu.equals ("3"))
               JOptionPane.showMessageDialog(null, "Thank You For Using our Service! \nGoodbye!");
               System.exit(0);
          if (menu.equals ("2"))
          if (menu.equals ("1"))
          addNewEntry();
          else
               JOptionPane.showMessageDialog(null, "Please select your choice form the menu");
               theMenu();
     public static void addNewEntry()
               CompactDisk [] array = new CompactDisk[20];
               int i = 0;
               array.artistname = (JOptionPane.showInputDialog("Please enter the name of the Artist"));
               array[i].albumname = (JOptionPane.showInputDialog("Please enter the name of the Album"));
               array[i].numberoftracks = (Integer.parseInt (JOptionPane.showInputDialog("Please enter the number of tracks on this album")));
//A Compact Disk entry consists of three attributes: artist name, album and number of tracks
class CompactDisk
     public String artistname; //Instance variables for artistname, albumname and numberoftracks.
     public String albumname;
     public int numberoftracks;
     public CompactDisk(String n, String a, int t)
     artistname = n; //Stores the 1st argument passed after "new Dates" into day
     albumname = a; //Stores the 2nd argument passed after "new Dates" into month
     numberoftracks = t; //Stores the 3rd argument passed after "new Dates" into year
     //When called from the main method, prints the contents of
     //artistname, albumname and numberoftracks on to the screen.
     public void printCompactDisk ()
               String output = "\n " + artistname + "\n " + albumname + "\n " + numberoftracks;
               System.out.println(output);
I've edited the code, itcompiles, but gives an error when i ran it..:(

Accessing data in an array of objects..

I've created the classes
public class Box
int width;
int height;
int depth;
     public Box(int a, int b, int c)
     width = a;
     height = b;
     depth = c;
     public void getWidth()
     System.out.println(width);
     public void getHeight()
     System.out.println(height);
     public void getDepth()
     System.out.println(depth);
}and this collection of boxes...
public class Collecton
     int count = 0;
     Box[] BoxCollection;
     public Collection
     BoxCollection = new Box[50]
     public recbox(int a, int b, int c)
     BoxCollection[count] = new Box(a, b, c)
     count++
     public printBoxes()
     System.out.println("Box Number = " + count);
     System.out.print("Box Width: ");
     BoxCollection[count].getWidth();
     etc...
}Now, I call this in the main code so that after each box is created, the specs of the box is printed back out onto the screen. The calling procedure works
However, only the Box Number part seems to print... the width, height and depth all don't work.
Am I accessing the data stored in the array of objects incorrectly?
Please advise.
Thanks

a b and c come from user inputs via an input/output lib... and you are sure this user input works? Perhaps you're searching in the wrong place: Do a System.out.println(a + ", " + b + ", " + c) just after getting that user input (from console?) and check the values.
Patrick

How to manage Arrays as Object members

I found a realy strange behavior with the instanciation of a
Class which contains an Array member.
Here is the code wich is self explanatory.

Create the array instance in the constructor.
class MyObj {
public var tab:Array;
function MyObj(index) {
this.tab= new Array();
"Chris_007" <[email protected]> wrote in
message
news:[email protected]...
> I found a realy strange behavior with the instanciation
of a Class which
> contains an Array member.
>
> Here is the code wich is self explanatory.
>
>
>
>
>
> class MyObj {
> //
> public var tab:Array = new Array();
> private var objectName:String;
> private var theIndex:Number;
> //
> // Constructeur
> function MyObj(index) {
> this.theIndex = index;
> // Object name
> this.objectName = "name#" + index;
> for (var i = 0; i < 3; i++) {
> this.tab
= index * 3 + i;
> }
> }
> //
> function printObject() {
> trace(" Printing Object name --> " +
this.objectName);
> for (var i = 0; i < 3; i++) {
> trace(" tab[" + i + "] : " + this.tab);
> }
> }
> //
> function getClone() {
> return new MyObj(theIndex);
> }
> }
>
>
> // And the main scenario code
> //
> var index:Number = 0;
> //
> var objArray:Array = new Array();
> //
> var oob:MyObj;
> //
> function printMyArray(arr:Array):Void {
> for (var i = 0; i < arr.length; i++) {
> trace(" tab[" + i + "] : " + arr
> }
> }
> //
> // Filling in the Array
> for (var i = 0; i < 4; i++) {
> oob = new MyObj(index);
> // oobj = oob.getClone();
> trace("-- New object #" + i + " created. MyObj[" + index
+ "]");
> oob.printObject();
> objArray = oob;
> trace("-- Now entered into the array -- printing from
object #" + i );
> objArray
.printObject();
> trace("-- or printing from the scenario -- objArray[" +
i + "] is realy
> stored");
> printMyArray(objArray.tab);
> trace("____________________________________");
> index += 1;
> }
> //
> // Printing the array of pointers to MyObj
> trace("___________________________________________");
> trace("And now, all in one...\nPrinting the array of
pointers to MyObj
> trace("___________________________________________");
> for (var i = 0; i < 4; i++) {
> objArray
.printObject();
> }
> trace("------ Or directly from the scenario -------");
> for (var i = 0; i < 4; i++) {
> trace(" Printing from scenario Object name --> " +
objArray.objectName);
> printMyArray(objArray
.tab);
> }
> trace("___________________________________________");
> trace("They are all the same ?!\nIt seems to have lost
something !!!!");
> trace("___________________________________________");
> //
> //
> trace("\nAmazingly, the array's elements do not refer to
the same
object\n");
> //
> trace("objArray[0] == objArray[0] ? -->" +
(objArray[0] == objArray[0]));
> trace("objArray[0] == objArray[1] ? -->" +
(objArray[0] == objArray[1]));
> trace("objArray[0] instanceof MyObj ? -->" +
(objArray[0] instanceof
MyObj));
> trace("");
> //
> trace("\nThey realy seem to point different objects
!\n");
> //
> // So, why do they have different outputs ?
> //
> //
> //
> // It seems the 'new' constructor creates a new Object
'MyObj'
> // which always resides at the same memory location.
> // 'oob' is in fact a pointer, and objArray[] an array
of pointers,
> // as so an array of memory addresses.
> // The objArray[] elements are pointers which always
refer to the
> // the same memory zone, which in fact contains the last
content of the
> object.
> //
> //
> // And then manualy
> //
>
trace("**********************************************************");
> trace("\nAnd then another way to create each new object
manualy\n");
>
trace("**********************************************************");
> //
> //
> var otherObjArray:Array = new Array();
> //
> var oob0 = new MyObj(100);
> trace("-- New object created #100");
> oob0.printObject();
> otherObjArray[0] = oob0;
> trace("-- Now entered into the array --
otherObjArray[0]");
> otherObjArray[0].printObject();
> //
> var oob1 = new MyObj(200);
> trace("-- New object created #200");
> oob1.printObject();
> otherObjArray[1] = oob1;
> trace("-- Now entered into the array --
otherObjArray[1]");
> otherObjArray[1].printObject();
> //
> var oob2 = new MyObj(300);
> trace("-- New object created #300");
> oob2.printObject();
> otherObjArray[2] = oob2;
> trace("-- Now entered into the array --
otherObjArray[2]");
> otherObjArray[2].printObject();
> //
> trace("___________________________________________");
> trace("And now, all in one...\nEnjoy the show !!!!");
> trace("___________________________________________");
> otherObjArray[0].printObject();
> otherObjArray[1].printObject();
> otherObjArray[2].printObject();
> //
> trace("\nThe problem seems to reside in the way the
Arrays members are
managed
> by the Objects !\n");
> trace("\nHELP me please to find the bug\n");
> //
>

How to sort an array of objects?

I need to sort an array of objects. Each object has serial number, and other properties. I need to sort it by serial number.

Do a java.util.Arrays.sort(). The method has quite a few overloads, so I'll give a complete example this time:import java.util.*
public class SortDemo {
    public static void main(String args) {
        SimpleObject[] objs = new SimpleObject[10];
        for (int i=0; i<10; i++)
            objs=new SimpleObject();
dump(objs);
Comparator c = new SimpleComparator();
Arrays.sort(objs, c);
dump(objs);
static void dump(Object[] o) {
for (int i=0; i<o.length; i++)
System.out.print(o[i] + " ");
/** Object to demonstrate comparing with **/
class SimpleObject {
private int n = (int) (10*Math.random());
public String toString() {
return String.valueOf(getNumber());
public int getNumber() {return n;}
/** The custom comparator **/
class SimpleComparator implements Comparator {
public int compare(Object o1, Object o2) {
return ((SimpleObject) o1).getNumber() - ((SimpleObject) o2).getNumber();
public boolean equals(Object o) {return false;}
}I could have made the SimpleObject class "Comparable", but a design like this allows more flexibility so I decided to use another class for the Comparator.

Property List error: Unexpected character b at line 1 / JSON error: JSON text did not start with array or object and option to allow fragments not set.

Hi,
I have a MBP 13' Late 2011 and Yosemite 10.10.2 (14C1514).
Until yesterday, I was using Garmin ConnectIQ SDK and all was working fine.
Yesterday, I've updated my system with latest security updates and Xcode updates too (Version 6.2 (6C131e)).
Since, I can't launch the ConnectIQ simulator app, I have this message in console :
8/04/2015 15:19:04,103 mds[38]: There was an error parsing the Info.plist for the bundle at URL Info.plist -- file:///Volumes/Leto/connectiq-sdk-mac-1.1.0_2/ios/ConnectIQ.bundle/
The data couldn’t be read because it isn’t in the correct format.
<CFBasicHash 0x7fa64f44e9a0 [0x7fff7dfc7cf0]>{type = immutable dict, count = 2,
entries =>
0 : <CFString 0x7fff7df92580 [0x7fff7dfc7cf0]>{contents = "NSDebugDescription"} = <CFString 0x7fa64f44f0a0 [0x7fff7dfc7cf0]>{contents = "Unexpected character b at line 1"}
1 : <CFString 0x7fff7df9f5e0 [0x7fff7dfc7cf0]>{contents = "kCFPropertyListOldStyleParsingError"} = Error Domain=NSCocoaErrorDomain Code=3840 "The data couldn’t be read because it isn’t in the correct format." (Conversion of string failed.) UserInfo=0x7fa64f44eda0 {NSDebugDescription=Conversion of string failed.}
I have looked at this file and it looks like a binary plist
bplist00ß^P^V^A^B^C^D^E^F^G^H
^K^L^M^N^O^P^Q^R^S^T^U^V^W^X^Y^Z^[^\^]^^^_ !"$%&'()'+,^[\CFBundleNameWDTXcodeYDTSDKName_^P^XNSHumanReadableCopyrightZDTSDKBuild_^P^YCFBundleDevelopmentRegion_^P^OCFBundleVersi on_^P^SBuildMachineOSBuild^DTPlatformName_^P^SCFBundlePackageType_^P^ZCFBundleShortVersionString_^P^ZCFBundleSupportedPlatforms_^P^]CFBundleInfoDictionaryVersion_^P^RCFBundleE xecutableZDTCompiler_^P^PMinimumOSVersion_^P^RCFBundleIdentifier^UIDeviceFamily_^P^QDTPlatformVersion\DTXcodeBuild_^P^QCFBundleSignature_^P^ODTPlatformBuildYConnectIQT0611[iph oneos8.1o^P-^@C^@o^@p^@y^@r^@i^@g^@h^@t^@ ^@©^@ ^@2^@0^@1^@5^@ ^@G^@a^@r^@m^@i^@n^@.^@ ^@A^@l^@l^@ ^@r^@i^@g^@h^@t^@s^@ ^@r^@e^@s^@e^@r^@v^@e^@d^@.V12B411RenQ1V14C109Xiphoneos TBNDLS1.0¡#XiPhoneOSS6.0YConnectIQ_^P"com.apple.compilers.llvm.clang.1_0S8.1_^P^Tcom.garmin.ConnectIQ¡*^P^AW6A2008aT????^@^H^@7^@D^@L^@V^@q^@|^@<98>^@ª^@À^@Ï^@å^A^B^A^_^A?^AT^ A_^Ar^A<87>^A<96>^Aª^A·^AË^AÝ^Aç^Aì^Aø^BU^B\^B_^Ba^Bh^Bq^Bv^Bz^B|^B<85>^B<89>^B<93>^B¸^B¼^BÓ^BÕ^B×^Bß^@^@^@^@^@^@^B^A^@^@^@^@^@^@^@-^@^@^@^@^@^@^@^@^@^@^@^@^@^@^Bä
I guess it is a normal format but my system seems to be unable to read binary plist ?
I tried some stuff with plutil
plutil -lint Info.plist
Info.plist: Unexpected character b at line 1
Same for convert
plutil -convert xml1 Info.plist
Info.plist: Property List error: Unexpected character b at line 1 / JSON error: JSON text did not start with array or object and option to allow fragments not set.
I also try to download a fresh version of the connectIQ SDK and no changes.
Any idea ?
Thanks

Step by step, how did you arrive at seeing this agreement?

How to print contents in an object?

I would like to print content of object as it is printing like AccountSearchReqBOD@726d23. AccountSearchReeqBOD is generated by ant task clientgen which is not overriding toString method. how can i print contents in an object. Plz help me..
Thanks in advance.

i tried with reflection as below
public String toString1(Object obj)
     StringBuffer buff = new StringBuffer();
     Field[] fields = obj.getClass().getDeclaredFields();
     for (int i = 0; i < fields.length; i++)
     try
     fields.setAccessible(true);
     buff.append(fields[i].getName())
     .append("\t=>\t")
     .append(fields[i].get(obj))
     .append("\n");
     //System.out.println(fields[i].getName() + " : values: " +
     // fields[i].get(this));
     catch (IllegalAccessException ex)
     ex.printStackTrace(System.out);
     catch (IllegalArgumentException ex)
     ex.printStackTrace(System.out);
     return buff.toString();
     * Method logRequest<p/>
     * Logs a SOAP request.
     * @param request
     private void logRequest(Object request) {
          if (mLog.isDebugEnabled()) {
               if (request != null) {
                    mLog.debug("request:");
                    mLog.debug(toString1(request));
               } else {
                    mLog.debug("request is null");
But the above also doesn't log the object with in object. it gives log as
2011-02-08 12:31:44,170 - DEBUG (WSClient:1168) - request:
2011-02-08 12:31:45,405 - DEBUG (WSClient:1169) - hostInput     =>     HostInput
2011-02-08 12:32:08,935 - DEBUG (WSClient:1186) - response:
2011-02-08 12:32:10,060 - DEBUG (WSClient:1187) - processService     =>     com.tfs.tfs.sharedcomponents.serviceschemas.hostavailable.hostavailableressync.ProcessService@1d43cab
Request is in correct format but response object got another object as processService which is not outputting correctly. Please help me..
Edited by: user8660327 on Feb 8, 2011 2:25 PM

Reading a CSV file and producing an array of objects

Hi everybody,
I am writing an application which will read a cvs file and produce an array of objects.
Can any body help me to solve this problem?
Thanks
Finny

Hello,
Have you tried this link?
http://ostermiller.org/utils/CSV.html

How to pass array of Object in A Procedure using OCCI.......

I m also trying for How to pass Object to a procedureb using OCCI...
Steps....
1. I created A type.....
2. Then I created a VARRAY using that Type.
3.After that I have written An Procedure with object as a parameter..
now using OCCI how do u bind the parameter with this . plz note that using OTT
i have already created the class representation of above object type i.e class
four Files Created 1> demo.h 2>registermapping.h
3> demo.cpp 2>registermapping.cpp
After I want to Pass the Values in A Vector...
vctor<full_name *> vect;
stmt=con->createStatement("BEGIN Add_Object(:1); END;");
full_name *name1 = new full_name; //Giving the Error here Given below....
name1->
name1->
Through name1 Which Function I will call in which I will Pass a String....
like
name1->readSQL("Sanjay"); Or I have to add a function......
vect.push_back(name1);
setVector(stmt,1,vect,"FULL_NAME");
error C2259: 'FullName' : cannot instantiate abstract class
can u plz suggest me Why this Error is Giving......?
How to pass the data?
setFirst_name() and setLast_name() this two function I will add in Demo.cpp which one created automativcally by Using OTT command.....or other way plz tell me Boss ....
Can u lz Suggest me ASAP....

hi Nishant ,
What u have done Now I mm trying ....
can u Plz Suggest me......
How to pass and Array of Object in Procedure using OCCI... Doing....
90% finished Two Error's Are Coming...
1> If I create the Class then Data Not Inserting table......
2> If I will create the Class through OTT command.......
then U can't Instantiate Object It is DIsplying ,this is Abstract Class(PObject)...
Beco'z the below Method is Not adding Automatically by OTT command which is Pure Virtual Function.....
But I added this Function Still SAme Error Giving..
getSQLTypeName(oracle::occi::Environment env, void *schName,
unsigned int &schNameLen, void **typeName,
unsigned int &typeNameLen) const
Plz Suggest me....
regard's
sanjay

Array of Object

How to create array of object dynamically and the class is also having constructor.
like:
class Cir{
private double radius;
Cir(double r){
redius=r;
10 objects are to be created within for loop

Cir c[]=new Cir[10]
for(int i=0;i<10;i++)
c [ i ] =new Cir(radious);
Message was edited by:
ramireddi

Array of objects.....different syntax !!

Both are Array of objects.........
Object[] array = new Object[2];
        array[0] = new Long( 1 );
        array[1] = new String( "My string" );Another code.........
private Color colors[] =
         { Color.black, Color.blue, Color.cyan, Color.darkGray,
         Color.gray, Color.green, Color.lightGray,
         Color.magenta, Color.orange, Color.pink, Color.red,
     Color.white, Color.yellow };Both are array of objects. but look the difference one usues new another dont
i dont like the second one.....but it is usued. what is it ?

What I meant is you can always use the new operator to create an array. You can even use it in conjunction with populating it: Object[] = new Object[] {"foo", new Integer(5), etc...}; But more to the point, declaring an array final says nothing about that array's elements.
public class ZZZ {
    final int[] arr_; // legal, as long as all ctors give this variable a value
    public ZZZ() {
        arr_ = new int[1]; // legal, even without providing a value for the element
    public ZZZ(int size) {
        arr_ = new int[size]; // legal
        arr_[0] = 0; // legal
        arr_[0] = 1; // legal
}

Printing an array of objects

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