Hi Friend,

Try the following code:

1)'A.java'

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

public class A{
JTextField text;
JLabel label;
JPanel panel;
JButton button;
JFrame frame;
public A(){
frame=new JFrame();
panel=new JPanel(new GridLayout(2,2));
text=new JTextField();
label=new JLabel("Enter Name:");
button=new JButton("SUBMIT");
panel.add(label);
panel.add(text);
panel.add(button);
frame.add(panel,BorderLayout.CENTER);

button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae){
String value=text.getText();
B page=new B();
page.setVisible(true);
JLabel label = new JLabel("Welcome:"+value);
page.getContentPane().add(label);
frame.disable();
}
});
frame.setSize(300,100);
frame.setVisible(true);
}
public static void main(String arg[])
{


A ab=new A();
}

}

2) 'B.java'

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

class B extends JFrame
{
B()
{
setDefaultCloseOperation(javax.swing.
WindowConstants.DISPOSE_ON_CLOSE);
setTitle("Welcome");
setSize(300, 100);
}
}

Thanks