Java Beginner Problem


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Thread: Java Beginner Problem

  1. #1
    Join Date
    Apr 2006
    Posts
    1

    Java Beginner Problem

    I am doing a homework and stuck. After reading several tutorials, I still have no idea of how to do it. There is no tutorial that teach exactly what I am doing. The comments highlighted below is the code that I have to write.

    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;

    // Random is-a JApplet, using certain Event Listener
    public class Randomizer
    {
    JLabel myLabel;
    JButton myButton;

    public void init()
    {

    // Create a JLabel with initial value: "1-100"

    // Set JLabel horizontally aligned

    // Create a JButton with word "Randomize" on it


    // set GridLayout

    // add the label in the container

    // add the button in the container

    // associate the any listener with current object

    }

    public int generateRandomNumber() {
    int val = (int)(100*Math.random() + 1); // Range 1-100
    return val;
    }

    public void actionPerformed (ActionEvent e)
    {
    // update the displaying text (the random number) on the jlabel

    }
    }

    I am not asking you to do all the code for me. I just want some hints. Anyone can give me hints to do it? Any help is appreciated.
    Last edited by TheDictator; 04-28-2006 at 11:56 AM.

  2. #2
    Join Date
    Oct 2005
    Posts
    107
    those comments tell you exactly how to do it.

    where are you stuck?

    first off you might want to extend JApplet

    myLabel = new JLabel("1-100");
    ...

    myButton = new JButton("Randomize");

    ...

    myButton.addActionListener(this);

  3. #3
    Join Date
    Mar 2005
    Location
    UK, London
    Posts
    150
    then just do myLabel.setText("" + randomNUmber);

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