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Thread: for loop and arrays !

  1. #1
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    Angry for loop and arrays !

    // HI all ..

    i trying to develop applet program,it contain 2 arrays

    first one "marks"

    second one "names"

    and i use 10 enteris

    now when we run program :-

    user enter first name in textField "t1" and press on button "store"

    then the first name store in array" name" in index 0 ..

    then : user enter the mark of first name in intField "i1" .. then the mark store in array 2 in index 0

    and when we finish enter 10 student information ..

    we use sort button to sort marks from small to large ..

    and the names sort too .. ( name and marks are printed in TextArea )





    NOW :

    i have problem in if statement and else .. and i cant make the Applet ,, i need if else statement ! and the for loop

    this is the code //

    /*
    PLEASE HELP ME
    */


    package arrays;
     
    import java.applet.Applet;
    import java.awt.*;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
     
    public class NewApplet extends java.applet.Applet implements ActionListener{
        TextField t1;
        Button b1,b2;
        IntField i1;
     
        TextArea k1;
     
     
     
        public void init() {
            t1=new TextField(50);
            i1=new IntField(50);
            b1=new Button("sort");
            b2=new Button("store");
     
    k1=new TextArea(20,20);
     
             b1.addActionListener(this);
              b2.addActionListener(this);
     
     
                add(b1); add(b2); add(t1); add(i1);
     
                add(k1);
     
        }
     
     
     
     
        public void actionPerformed(ActionEvent e) {
            Object cause = e.getSource();
     
     
            String x1=t1.getText();
            int x2=i1.getInt();
     
     
     
           if(cause==b1){
     
     
           }
     
    if(cause==b2){
     
    }}}
    Last edited by helloworld922; May 6th, 2010 at 03:22 PM.


  2. #2
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    Default Re: for loop and arrays !

    help..... :s

  3. #3
    Super Moderator helloworld922's Avatar
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    Default Re: for loop and arrays !

    Please be patient We're not online 24/7 constantly refreshing the page for questions to answer.

    Here's a simple algorithm for sorting an array:
    1. Start with index = 0
    2. for every element indexed after index,
    3. compare it with elements before index (going in order form 0...index).
    4. At the first item that is "larger" than that value (according to the compareTo() method), the item at index needs to be inserted before that item
    5. Repeat until index=length of items to be sorted

    If you need help understanding the grammer/syntax of Java, this site should help you to understand the basic ways you can control the flow of your program: Java nuts and bolts: flow

  4. #4
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    Default Re: for loop and arrays !

    OK , Thanx

  5. #5
    mmm.. coffee JavaPF's Avatar
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    Default Re: for loop and arrays !

    See what you can do with helloworlds algorithm and post back if you get stuck
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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