RosettaCodeData/Task/Higher-order-functions/Java/higher-order-functions-2.java

20 lines
651 B
Java

public class ListenerTest {
public static void main(String[] args) {
JButton testButton = new JButton("Test Button");
testButton.addActionListener(new ActionListener(){
@Override public void actionPerformed(ActionEvent ae){
System.out.println("Click Detected by Anon Class");
}
});
testButton.addActionListener(e -> System.out.println("Click Detected by Lambda Listner"));
// Swing stuff
JFrame frame = new JFrame("Listener Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(testButton, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
}