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adding controls to JFrame  RSS feed

 
Nirmal JeyaChandra
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Posts: 25
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This is my program the controls are not getting added please advise me how to add it.


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


public class testing extends JFrame implements Runnable
{
Thread t;
int i, j, x, y;
public volatile boolean run=true;

JButton b1, b2;

public static void main(String args[])
{
testing tst=new testing();
}

public testing()
{
b1=new JButton("stop");
b2=new JButton("start");
JPanel p=new JPanel();
p.add(b1);
p.add(b2);
pack();
setVisible(true);
setSize(800, 500);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

t=new Thread(this);
t.start();
}

public void run()
{
for(i=0;i<210;i+=10)
{
repaint();
try
{
t.sleep(300);
}catch (InterruptedException es)
{}

}


}
public void paint(Graphics g)
{
g.setColor(Color.blue);
g.drawLine(50, 250, 50+i, 250);
g.drawLine(50, 50, 50, 50+i);
}


}
 
Kia Phia Ben
Ranch Hand
Posts: 48
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using JFrame: before add control : You have to: getContentPane() method and add control .
Ex myFrame.getContentPane().add(myButton);
 
Nirmal JeyaChandra
Greenhorn
Posts: 25
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getContentPane().add(b1);
getContentPane().add(b2);

It is not working using the above code
 
Ulf Dittmer
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Posts: 42972
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Please don't post the same question to more than one forum. Let's continue the discussion in the GUI forum, where an answer has already been given.
 
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