Repaint method in Thread not moving String

[javapenguin]

The String I'm painting will move...but only if I minimize and maximize the window. It's not repainting automatically. How come?

import java.lang.Thread;
import java.awt.*;
import java.util.*;
import java.io.*;
import javax.swing.*;
 
 
 
public class Melissa extends Thread 
{
Background b;
private class Background extends JFrame
{
private String text;
public Background(String name)
{
super(name);
setVisible(true);
setString(name);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
 
public void paint(Graphics g)
{
super.paint(g);
Random r = new Random();
Random r2 = new Random();
int x = r.nextInt(300);
int y = r.nextInt(300);
 
int red = r2.nextInt(256);
int green = r2.nextInt(256);
int blue = r2.nextInt(256);
 
 
g.setColor(new Color(red,green,blue));
g.drawString(getString(), x, y);
 
}
 
public void setString(String text)
{
this.text = text;
}
 
public String getString()
{
return text;
}
}
public Melissa(String name)
{
super(name);
b = new Background(name);
 
System.out.println(this);
start();
}
 
public void run() {
		//Display info about this particular thread
		System.out.println(Thread.currentThread().getName());
	try
	{
		Thread.sleep(9000);
		b.repaint();
	}
 
	catch(InterruptedException ieRef)
	{
	System.out.println("Error!");
	}
 
 
	}
 
public static void main(String[] args)
{
Scanner console = new Scanner(System.in);
 
System.out.println("Enter text");
String text3 = console.nextLine();
 
Melissa m2 = new Melissa(text3);
m2.run();
 
}
 
}

[Brt93yoda]

The way you structured that program annoys me. Anyways, in order to update the image without max/min-imizing you need an infinite loop that calls repaint().

[javapenguin]

The way you structured that program annoys me. Anyways, in order to update the image without max/min-imizing you need an infinite loop that calls repaint().

Ok. But will that run me out of memory?

[javapenguin]

Could you tell me how to stop that crazy bouncing 10000 times a second?

[Brt93yoda]

while(true)
{
    //do all of the updates
 
  Thread.sleep(16);  //60 frames per second
}

sleep isn't exact, but it should work for what you're doing.