import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JButton;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
public class Main {
public static void main(String[] argv) throws Exception {
final JPopupMenu menu = new JPopupMenu();
JMenuItem item = new JMenuItem("Item Label");
menu.add(item);
JButton component = new JButton("button");
component.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent evt) {
if (evt.isPopupTrigger()) {
menu.show(evt.getComponent(), evt.getX(), evt.getY());
}
}
public void mouseReleased(MouseEvent evt) {
if (evt.isPopupTrigger()) {
menu.show(evt.getComponent(), evt.getX(), evt.getY());
}
}
});
}
}
【menu】
