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Thread: JList - Learning Java

  1. #1
    Junior Member
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    Question JList - Learning Java

    HI, I'm learning Java but I got a problem when I'm using JList - but I don't know what it is.

    My Main-Class:

    import javax.swing.JFrame;
    import GUI_JComboBox.Gui;
    public class Main {
    	public static void main(String[] args) {
    		Gui go = new Gui();
    		go.setSize(300, 200);

    My Gui Class:

    import javax.swing.*;
    import java.awt.*;
    import javax.swing.event.*;
    public class Gui extends JFrame{
    	private JList list;
    	private static String[] colornames = {"black", "blue", "red", "white"};
    	private static Color[] colors = {Color.BLUE, Color.BLACK, Color.WHITE, Color.RED};
    	public Gui(){
    		setLayout(new FlowLayout());
    		list = new JList(colornames);
    		//This is how many the user can see by default.
    		//This is so the user only can select ONE.
    		add(new JScrollPane(list));
    				new ListSelectionListener(){
    					//This is need, when we use the ListSelectionListener.
    					public void valueChanged(ListSelectionEvent event) {
    						//This will set the background color.

    Please Help me, I wanna learn Java - so please be nice to me, and explain VERY NOOB-FRENDLY what I did worng, and how I can fix it - Thank You!

  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: JList - Learning Java

    What makes you think you did something wrong? What does this code do? Does it compile? Does it run? Does it exhibit some strange behavior? Something else?
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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