?? movebutton.java
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//file: MoveButton.javaimport java.awt.*;import java.awt.event.*;import javax.swing.*;public class MoveButton extends JPanel { JButton button = new JButton("I Move"); public MoveButton( ) { setLayout(null); add(button); button.setSize(button.getPreferredSize( )); button.setLocation(20, 20); addMouseListener(new MouseAdapter( ) { public void mousePressed(MouseEvent e) { button.setLocation(e.getX(), e.getY( )); } }); } public static void main(String[] args) { JFrame f = new JFrame("MoveButton"); f.addWindowListener(new WindowAdapter( ) { public void windowClosing(WindowEvent e) { System.exit(0); } }); f.setSize(250, 200); f.setLocation(200, 200); f.setContentPane(new MoveButton( )); f.setVisible(true); }}
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