Alternate Displayed Colors

[Arthur Buliva]

I have this short code

import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JFrame;
import javax.swing.JTextArea;
 
public class Main extends JFrame
{
    public Main()
    {
        super("color Alternator");
        alternate();
    }
    /**
     * Creates the JTextArea with alternating colors
     */
    public void alternate()
    {
        
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        
        final JTextArea alternator = new JTextArea("This is where the text is displayed\n");
        alternator.append("Hello World\n");
        alternator.setForeground(Color.RED);
        alternator.append("Hello World\n");
        alternator.setForeground(Color.GREEN);
        alternator.append("Hello World\n");
        alternator.setForeground(Color.YELLOW);
        alternator.append("Hello World\n");
        alternator.setForeground(Color.BLACK);
        alternator.append("Hello World\n");
        alternator.setForeground(Color.BLUE);
        alternator.append("Hello World\n");
        setLayout(new BorderLayout());
        
        getContentPane().add(alternator, BorderLayout.CENTER);
        
        setBounds(100, 100, 500, 500);
        setVisible(true);
    }
    
    public static void main(String[] args)
    {
        new Main();
    }
}

which the JtextArea displays with the last color I have specified. I however, would like it to alternate the color. Anyone?

[Brian Cole]

JTextArea uses a single style for all its text. Use a JTextPane if you want to display multiple styles. Here's an example that more or less does what you are trying to do.

[edit: fix typo]
[ June 20, 2007: Message edited by: Brian Cole ]