How we can performed a event handling of a button that reflecting the title of a frame in java?

Try this:

// ChangeFrameName.java

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

public class ChangeFrameName

{

private static JFrame frame;

private static void createAndShowGUI()

{

frame = new JFrame("Original name");

frame.setSize(300, 300);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JButton button = new JButton("Change Name");

//Add action listener to button

button.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

if(frame.getTitle() == "Original name")

{

frame.setTitle("New name");

}

else

{

frame.setTitle("Original name");

}

});

frame.getContentPane().add(button);

frame.setVisible(true);

}

public static void main(String[] args)

{

javax.swing.SwingUtilities.invokeLater(new Runnable()

{

public void run()

{

createAndShowGUI();

}

});

}

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