42 lines
847 B
Java
42 lines
847 B
Java
|
Testing a code
|
||
|
|
|
||
|
|
import javax.swing.*;
|
||
|
|
public class abc extends JFrame implements ActionListener
|
||
|
|
{
|
||
|
|
JPanel p;
|
||
|
|
JButton b;
|
||
|
|
JTextField t;
|
||
|
|
JLabel l,i;
|
||
|
|
|
||
|
|
public abc()
|
||
|
|
{
|
||
|
|
p=new JPanel();
|
||
|
|
b=new JButton("click");
|
||
|
|
t=new JTextField(15);
|
||
|
|
l=new JLabel("enter ur id");
|
||
|
|
|
||
|
|
|
||
|
|
p.add(l);
|
||
|
|
p.add(t);
|
||
|
|
p.add(b);
|
||
|
|
getContentPane().add(p);
|
||
|
|
setSize(400,400);
|
||
|
|
setVisible(true);
|
||
|
|
b.addActionListener(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
public static void main(String []aa)
|
||
|
|
{
|
||
|
|
abc a= new abc();
|
||
|
|
}
|
||
|
|
|
||
|
|
public void actionPerformed(ActionEvent e)
|
||
|
|
{
|
||
|
|
Object o= e.getSource();
|
||
|
|
if(o==b)
|
||
|
|
{
|
||
|
|
i=new JLabel("U Have Entered Wrong Value");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|