How to sort a Array to be new Array in descend?

hello guys:
I have a array String[] selected = {0,1,2,3,4,5,6,7,8,9};I want to sort it into a new Array like : {9,8,7,6,5,4,3,2,1,0} , how i can do
thanks

Hmmmm not sure if you meant
int[] selected
rather than
String[] selected
You can't sort int[] in descending order using the standard API, you could though do a normal sort of the array and then iterate through it swapping element indexes, the first one in ascending sort will become the last one and the 2nd becomes the 2nd last one and so on....
for (int i=0;i<selected.length / 2;i++) {
int temp = selected;
selected[i] = selected[selected.length - i - 1];
selected[selected.length - i - 1] = temp;

Similar Messages

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.

Re: how to sort an array of type string

thanks bina and turing pest. well i can't use collections.sort or arrays.sort i need to create a method to sort. stupid instructor dont want to take advantage of this good java language. anyways i am able to do the sort but now OMG the whole data is crappy. formatting is gone everything is fukedd up. excuse my language.
public void getSort(String[] A)
          String temp= A[0];
               for(int i=0; i<A.length; i++)
               for (int j=0; j<A.length-1-i; j++)
                    if(A[j].compareTo(A[j+1])>0)
                         temp = A[j];
                         A[j] = A[j+1];
                         A[j+1] = temp;
     }and here is my output if i dont use the sort before it was not giving me an exception of arraysoutofbound and now it is
Item          Number      Cost_unit     Sale_unit        TotalSale       profit          Totalprofit
Binder          500             4       7               3300            1500            1500
Bookbag         350             5       10              3300            1750            3250
Calendar        300             3       8               2400            1500            4750
Shirt           800             4       6               4600            1600            6350
Notebook        400             1       2               800             400             6750
Schedule        876             1       2               1752            876             7626and if i turn my sort function on this is what i getg
Item          Number      Cost_unit     Sale_unit        TotalSale       profit          Totalprofit
4       500             7       Binder                  3300            1500            1500
10              350             5       Bookbag                 3300            1750            3250
3       300             8       Calendar                2400            1500            4750
4       6       800             Shirt                   4600            1600            6350
1       2       400             Notebook                800             400             6750
1       2       876             Schedule                1752            876             7626
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
        at BookStore.main(BookStore.java:62)at this line it is giving me an exception
totalsale = test.totalSales(Integer.parseInt(str[1].trim()), Integer.parseInt(str[3].trim()));why is it all messed up?

you create bean for your data like this
class Person {
   private String name;
   private int age;
   public Person(String name, int age) {
      this.name = name;
      this.age = age;
   public String getName() {
      return name;
   public void setName(String name) {
      this.name = name;
   public int getAge() {
      return age;
   public void setAge(int age) {
      this.age = age;
   public String toString() {
      return "Name : " + name + "\n" + "Age : " + age;
}after that, just sort it
public class Sample {
   public static void main(String[] args) {
      Person[] array = new Person[3];
      array[0] = new Person("Dewi", 20);
      array[1] = new Person("Agus", 21);
      array[2] = new Person("Cindy", 18);
      sortByName(array);
      printOut(array);
   private static void printOut(Person[] array) {
      for(Person person : array){
         System.out.println(person);
         System.out.println();
   private static void sortByName(Person[] array) {
      for (int i = 0; i < array.length; i++) {
         for (int j = array.length - 1; j > i; j--) {
            if (array[j].getName().compareTo(array[j - 1].getName()) < 0) {
               Person temp = new Person(array[j].getName(), array[j].getAge());
               array[j].setName(array[j - 1].getName());
               array[j].setAge(array[j - 1].getAge());
               array[j - 1].setName(temp.getName());
               array[j - 1].setAge(temp.getAge());
}

How to sort StringBuffer array?

I got a little problem regarding sorting a StringBuffer Array. As you all know arithmetic operation can't be perform on StringBuffer. So do I have any other alternative on sorting it? I try ".toString()" function but can't use also.

Your talking about sorting the characters in a StringBuffer object, and not sorting an array of StringBuffers right? Well, isnt a StringBuffer basically a character array? If you use the getChars function, you can copy the StringBuffer into a character array, and from there use a bubble or quicksort to sort the characters...?

Sort algorithm: how can I sort two arrays according to one

I have two parallel arrays, similar to this:
var array1 = [4, 3, 1, 5, 2];
var array2 = ["four", "three", "one", "five", "two"];
I want to sort the first array, and have the second array follow the same sort as the first. Any advice for a good algorithm would be appreciated.
Rick Quatro

Hi Rick,
frameexpert wrote:
Technically, there was no correct answer because the problem could be solved in multiple ways,
I don't think you're right about not marking the question as correct just because there are multiple ways of solving it.
People search the forums for solutions and threads that are not marked as correct are somewhat relegated.
It wouldn't hurt to make bduffy232's day or even mark your own solution as correct which is more the less the same as the one on the link from KuddRoww and more the less the way I would have done it but see the difference in the results in the table at the bottom of this post.
I actually think that technically there can be multiple correct answers even though you can only one can be marked.
One other small point if you use the advance editor on the forum you can have you code formatted makes it much easier to read.
Anyway here's my half pence worth on the scripting front.
Your question was how to sort one array according to another, which I understand to mean that you want the originals arrays reordered
Yours and bduffy232's scripts do that properly the others don't. Jongware's first script is easy to fix up this problem by adding to the end of his script.
for (i = 0; i<Math.min(array1.length, array2.length); i++)
array1[i] = array3[i][0];
array2[i] = array3[i][1];
alert(array1+"\r"+array2)
Now in order of appearance
Jongware said:
.. I wonder why this does not work .. Perhaps my logic is flawed?
Hi Jongware
I tried your (2nd) script twice and on both occurrences it crashed my ESTK
From what I understand (not said with much confidence) the flaw in your logic is you are passing your arrays values to be sorted array1[?] and array2[?+1] to the sort function as 'a' and 'b' but and then refer to the array array1[a].
So let's examine a bit of the code
var array1 = [4, 3, 1, 5, 2];
array3.sort (function(a,b) {
var swap, diff = array1[a] - array1[b];
When run this is the equivalent of saying (for the first run of the sort loop)
diff = array1[4] - array1[3]
i.e.     diff = 2 - 5
i.e.     diff = -3
What you wanted to do was
diff = a - b
        = 4 -3
That's the way I see it.
Hi Marc
Change the first two lines of your first script to:
var array1 = [40, 7, 1, 5, 2];
var array2 = ["forty", "seven", "one", "five", "two"];
Then run the script
Now for my offering.
The fancy script
This script is not limited to a specific number of arrays.
after creating the arrays one creates an array of the arrays, specifies the number of the array that one wants to sort by and calls the function.
like this:
sortArraysInSync([a1,a2,a3,a4,a5], 1);
The arrays a1, a2, a3, ..... will get sorted according to the numeric or alphabetical order of the array specified in the 2nd parameter.
One could easily (I think) change the sort function to first sort by array x and then by array y etc.
// Advanced Sort Variable Numbers of Arrays in Sync Script by Trevor
// http://forums.adobe.com/thread/1062126?tstart=0
var   a1 = [2, 5, 10, 7, 100, 5, .5, 0]
        a2 = ['two', 'five', 'ten', 'seven', 'one hundred', 'five', 'one half', 'zero'],
        a3 = [ 'deux', 'cinq', 'dix', 'sept', 'cent', 'cinq', 'un demi', 'zéro' ],
        a4 = [ 'twee', 'vijf', 'tien', 'zeven', 'honderd', 'vijf', 'helft', 'nul' ],
        a5 = [ 'tsvey ', 'finef', 'tzien', 'zibn', 'eyn honderd', 'finef', 'eyn halb', 'nul' ];
alert("\tIndividual Arrays Before Sort\r"+a1+"\r"+a2+"\r"+a3+"\r"+a4+"\r"+a5);
sortArraysInSync([a1,a2,a3,a4,a5], 1);
alert("\tIndividual Arrays After Sort\r"+a1+"\r"+a2+"\r"+a3+"\r"+a4+"\r"+a5);
function sortArraysInSync (myArrays, s /* number or the array to sort by (starting from 1) */)
    arr = []; var l1 = ll1 = myArrays[0].length, i = ll2 = myArrays.length;
    s--;
    while(l1--)
            arr[l1]={}
            i = myArrays.length;
            while(i--) eval("arr["+l1+"].key"+i+" = myArrays[i][l1]");
    arr.sort(mySort);
    while (ll1--) for (i=0; i<myArrays.length;i++) eval ("myArrays[i][ll1] = arr[ll1].key"+i);
    alert("\tFunction Array After Sort\r"+myArrays.join("\r"))
function mySort(a, b)
        if (eval("isNumber(a.key"+s+") || isNumber(b.key"+s+")")) return eval("a.key"+s+"- b.key"+s+"");
        else if (eval("a.key"+s+".toLowerCase() > b.key"+s+".toLowerCase()")) return 1 else return -1;
function isNumber(n) {return !isNaN(parseFloat(n)) && isFinite(n)}; // isNumber function from http://stackoverflow.com/questions/18082/validate-numbers-in-javascript-isnumeric/1830844#1830844
For the simple 2 array sort I would have done as I said much the same as your one:
// Simple Sort Arrays in Sync Script by Trevor
// http://forums.adobe.com/thread/1062126?tstart=0
var   a1 = ['two', 'five', 'ten', 'seven', 'one hundred', 'five', 'one half', 'zero'],
        a2 = [2, 5, 10, 7, 100, 5, .5, 0]
alert("Individual Arrays Before Sort\r"+a1+"\r"+a2);
sortArraysInSync(a1,a2);
alert("Individual Arrays After Sort\r"+a1+"\r"+a2);
function sortArraysInSync (x, y)
    var arr = [], l1 = l2 = Math.min(y.length, x.length);
    while (l1--) arr.push({name: x[l1], number: y[l1]});
    arr.sort(function(a, b) { return a.number - b.number; });
    while (l2--)
        x[l2] = arr[l2].name;
        y[l2] = arr[l2].number;
I did a speed test by putting 2 3000 item arrays into my, your dbuffies and Jongware script and timing them.
These were the results.
Test done with alerts removed with program set to real time priority and alerts removed.
These were the arrays and timing method
var   a1 = ['zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 'five', 'two', 'zero', 'one half', 'five', 'one hundred', 'seven', 'ten', 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sdate = new Date();
startTime = sdate.getTime();
sortArraysInSync([a1,a2],2); // each scipt to its own.
edate = new Date();
endTime = edate.getTime();
totalTime = (endTime-startTime)/1000;
alert("Individual Arrays After Sort\r"+totalTime+"\r"+a1+"\r"+a2);
Script
Seconds taken to sort 2 Arrays 3000 items each
Comments
Trevor's Simple Script
1.3
Rick's (Frameexpert) Script
12.3
Trevor's Fancy Script
33
Bduffy's Script
68
Jongware's Script
Crashed, don't know why?
Don't forget to pick the correct answer.
My 'fancy' script is slowed down considerably because of thoses evil evals. Does anyone have a solution for this?
Regards
Trevor

Sorting an array of Objects based on a variable inside each object

I have a class public class handInfo
          //VARS
               int highC = 0;
               int hVal = 0;
               int numHand = 0;
          //CONSTRUCOTRS
               public handInfo()
          //METHODS
               public void setHC(int hc)
                         highC = hc;
               public void setHV(int hv)
                         hVal = hv;
               public void setNH(int nh)
                         numHand = nh;
               public int getHC()
                         return highC;
               public int getHV()
                         return hVal;
               public int getNH()
                         return numHand;
     }now i have an array, handInfo[] hands = new handInfo[4];
                    hands[0] = new handInfo();
                    hands[0].setHC(HV);
                    hands[0].setNH(1);
                    hands[0].setHV(Val);
                    hands[1] = new handInfo();
                    hands[1].setHC(HV2);
                    hands[1].setNH(2);
                    hands[1].setHV(Val2);
                    hands[2] = new handInfo();
                    hands[2].setHC(HV3);
                    hands[2].setNH(3);
                    hands[2].setHV(Val3);
                    hands[3] = new handInfo();
                    hands[3].setHC(HV4);
                    hands[3].setNH(4);
                    hands[3].setHV(Val4);i need to know how to sort this array, based off hVal...
D:

Write a Comparator and call Arrays.sort(array, Comparator).

Sort an array of Application Class with respect to property

class MyClass
property string myProgram;
property string myType;
property string Description;
end-class;
Local array of MyClass &myProgArray;
&myProgArray.Sort("D");
I want to sort the Array in descending Order with respect to "myType".
How to provide "myType" parameter to sort method ?
Edited by: Mohsin on Oct 11, 2012 3:28 PM

If you add myType to the array then you can sort on that, assuming you have different values for myType.
According to PeopleBooks (8.51), API documentation;
Sort(order)
Note. This method works with arrays that have only one or two dimensions. You receive a runtime error if you try to use this method with an array that has more than two dimensions.

Sorting an array of numbers with loops

Hi, i'm looking for a way to sort an array or numbers with loops.
my array looks like this. int[] numbers = {5,2,7,9,1}
i know how to use the "sort" method and i want to do it without the sort method, but i am not very clear on the logic behind it.
by the end it should look like this, {1,2,5,7,9}
i know 2 loops are used, can you please give me a logic to work with.
i have started the loops but what to do inside???
int temp;
for (int i=0; i<numbers.length; i++){
for (int j=1; j<numbers; j++){
if (numbers<numbers[j])
temp = numbers[i];
Any suggestions i will be thankful for.
thank you.

fly wrote:
no not really a homework question.. i want to improve my logic because it is very poor at the moment.. but i'm sure someone knows how to sort an array with loops only.Yes, we do know how to do it, I once wrote a heapsort in assembly code, as a real work project. But you rarely get a project like that the good ones were all done years ago.
All the algorithms I suggested you look at use loops. the simplest and slowest is the bubble sort. This one runs by comparing values and swapping their locations, the wikipedia article http://en.wikipedia.org/wiki/Bubble_sort has the algorithm.

How to sort a 2 dim. array by the first column?

Hi there,
I need to know, how to sort a 2 dim. String array by the first column, which means "string[0][x]".
I think, I have to implement a new comparator class. But how?
Thanks in advance for any help

I need to know, how to sort a 2 dim. String
array by the first column, which means
"string[0][x]".You want to sort the array using the first element in each row and that element is a String?
Let's forget about generics. Say you want to supply a Comparator. The compare method should decide the order between elements when passed two element objects. In a two-dimensional array the elements will be one-dimentional arrays and you use the first element in those arrays, like
public int compare(Object s1, Object s2) {
   String[] a1 = (String[]) s1; // first row array
   String[] a2 = (String[]) s2; // second row array
   return a1[0].compareTo(a2[0]); // compare first element of row arrays
}

We used to be able to sort by multiple columns/rows at once by right clicking on the header and choosing show more options-how do we do that in the new Numbers?

We used to be able to sort by multiple columns/rows at once by right clicking on the header and choosing show more options-how do we do that in the new Numbers? It doesn't appear anywhere. Do I now have to sort massive tables by each column one at a time now? Also there used to be an easier way to merge/unmerge cells without me having to go to the table menu each time. Am I missing something?

Multiple column sort is a missing feature in the new version. Hopefully soon to return. You can do a multicolumn sort by sorting one at a time in reverse order of importance.
For merging and unmerging cells, I select the cells and right click to bring up the contextual menu. Merge and unmerge are on the menu. You could also create keyboard shortcuts for Merge Cells and Unmerge Cells in the Table menu.

How to sort new mails

Hello friends
iam in the process of creating a javamail application iam retriving the messages by the number from the user mail box i would like to show the new messages in the user inbox as they arrive any idea how the sorting could be done
regards
hari

Well sultan thanks a lot
but iam aware of these methods i have different problem i have set netscape messager here and the netscape imap server just puts all the new mails at last i can check if the mails are unread new etc. by there flags but the problem was retrieving the messages by there number from my imap server i.e netscape messaging server
any way i have solved the problem
i have developed a engine in java that does this
lets work together for this forum
cheers
hari

How to sort a 2 dim Array ?

hello
I would like to sort a 2-dim array of double ( double[][])
according to the 1st column
It is possible to sort a 1st dim array (doubel[]) , but the method sort
of the class Array doesn't work with double[][]).
I have two (bad) solutions.
1) Writing a sorting method but I would prefer using the sort' method of java which uses quicksort
2) Creating a table of objects that implements Comparable but this would decrease performance
Do you have a better Idea ?
Thanks a lot

I would like to sort a 2-dim array of double (double[][]) according to the 1st column
Which is the first "column"? double[0][x] or
double[x][0]?
If it's the second one things get simple: your
double[][] is really an array of objects where each
object is an array of doubles. So all you need to do
is write a custom Comparator for double[] to use the
sort method:
compare(Object obj1, Object obj2) {
double[] d1 = (double[]) obj1;
double[] d2 = (double[]) obj2;
return d1[0] > d2[0];
}Thanks for your so prompt answer.
I can manage to put the data so that I sort the array according to x as in double[x][0]?
But WHERE do I have to write the "compare" method ?
Thanks

I need to sort an array of strings based on the number in each string.

Basically, I have a directory of files that all have the same name but each with a different number on the end.
example: image 1.jpg, image 2.jpg, etc.
When I use the List Directory function that returns an array of strings containing the file names in the directory, they don't come out in a 1, 2, 3, order like they appear in the directory. It sorts them character by character so that they come out like: 1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 2, 20, 21, 22 etc.
Is there a simple way of sorting this array of strings with the file names (as above) so that they are in numerical order?

It's a while since this thread was started, but I am sure others will have use for this so here goes:
The in-built array sort function sorts the strings the same way DOS and Windows do. Microsoft has fixed this in the Explorer that comes with XP, however the rest of the OS(s) still sorts the old way.
The attached "AlphaLogical String Array Sort" VIs will sort strings arrays the same way as the new XP Explorer. There are three different implementations of the sorting, one based on the Insertion sort algorithm, a Quick Sort based on recursive calls (the most elegant way, but unfortunately LabVIEW has too much overhead when doing recursive calls so this is actually a very slow alternative) and finally the fastest; a stack based Quick Sort. There is also a test VI that will show you how the different implementations perform.
I had not used recursive calls in LV much until I made the attached quick sort and was a bit disappointed by the fact that it is so slow, but it's a good learning example...The ability to do recursive calls this way was introduced in LV7 I believe...There is an example here on the zone that shows how you can calulate a factorial by using recursive calls, however - unlike for the quick sort (normally) - recursive calls are actually not the optimal solution for that calculation.
Message Edited by Mads on 09-13-2005 02:30 AM
MTO
Attachments:
AlphaLogical Sorting.zip ‏142 KB

How to sort files by TimeStamp.

Hello friends,
I have files which has following format.
Paymentxxxx.xml where xxxx is time in YYYYMMDDHH:MM:SS format.Example file name can be
Payment20010726143455.xml.How to sort such files according to time so that i can get old files first.
Thanks

<pre>
import java.util.*;
import java.text.*;
class Timing
     public static void main(String[] args)
          try
          SimpleDateFormat sdf=new SimpleDateFormat();
          String formatter="yyyyMMddhhmmss";
          sdf.applyPattern(formatter);
          //Accept files names here , and deduct extension and pass them into array as following
          String[] inputdates={"19760909132332","19760909032332","19830901132332","19800909132332"};
          Date[] conversionDate=new Date[inputdates.length];
          for(int i=0;i<inputdates.length;i++)
               conversionDate=sdf.parse(inputdates[i]);
          Date[] outputDates=sortDates(conversionDate);//Sorting dates
          for(int i=0;i<outputDates.length;i++)
          System.out.println(outputDates[i]);//CONVERT DATES INTO STRINGS
          catch(Exception e)
     private static Date[] sortDates(Date[] dates)
          int COUNT = dates.length;
          int j;
          Date tempDate;
          for(int i=0;i<COUNT;i++)
               j=i-1;
               tempDate=dates[i];
               while(j>=0 && tempDate.before(dates[j]))
                    dates[j+1]=dates[j];
                    dates[j]=tempDate;
                    j--;
          return dates;
</pre>

Sorting an array of filenames by filetype?

I have an array of filenames read from a directory list. I
can parse the
file type from each filename using a function. How would I
then sort the
array by their respective file type, so that all PDF files
sort together in
the array, for example? Or would it be easier to just loop
through the
array by filetype, printing each matching array value?
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================

That's exactly the code I am using except without the
multisort. It should
be an easy retrofit!
Thanks, Joe!
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Joe Makowiec" <[email protected]> wrote in
message
news:[email protected]...
> On 14 Apr 2008 in macromedia.dreamweaver.appdev, Joe
Makowiec wrote:
>
>> On 14 Apr 2008 in macromedia.dreamweaver.appdev,
Murray *ACE* wrote:
>>
>>> I have an array of filenames read from a
directory list. I can
>>> parse the file type from each filename using a
function. How would
>>> I then sort the array by their respective file
type, so that all
>>> PDF files sort together in the array, for
example? Or would it be
>>> easier to just loop through the array by
filetype, printing each
>>> matching array value?
>>
>>
http://www.php.net/manual/en/ref.array.php
>>
>> There are a bunch of sorting functions there.
array_multisort and
>> uasort both look interesting. Got code?
>
> Dropin for a directory listing in a <ul>:
>
> <pre>
> <?php
> $files2 = array();
> if ($handle = opendir('.')) {
> echo "Input: .\n";
> echo "Directory handle: $handle\n";
> /* This is the correct way to loop over the directory.
> while (false !== ($file = readdir($handle))) {
> $files[] = $file;
> if (substr($file, 0, 1) != '.') {
> $separator = split('\.', $file);
> $files2[] = array('filename' => $separator[0], 'ext'
=>
> $separator[1]);
> }
> echo "$file\n";
> }
> closedir($handle);
>
> // print_r($files);
> // print_r($files2);
>
> foreach ($files2 as $key => $row) {
> $filename[$key] = $row['filename'];
> $ext[$key] = $row['ext'];
> }
>
> array_multisort($ext, SORT_ASC, $filename, SORT_DESC,
$files2);
>
> // print_r($files2);
>
> reset($files2);
>
> }
> ?>
> </pre>
> <ul>
> <?php
> foreach ($files2 as $myfile) {
> echo "\t<li>";
> echo $myfile['filename'];
> echo (empty($myfile['ext'])) ? '' : '.' .
$myfile['ext'];
> echo "</li>\n";
> }
> ?>
> </ul>
>
> Code's probably uglier than it needs to be, but it
works.
>
> --
> Joe Makowiec
>
http://makowiec.net/
> Email:
http://makowiec.net/contact.php

How to sort a Array to be new Array in descend?

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