The ActionEvent event is generated as the result of the clicking of a button.
In Core Java, when a button is clicked, the corresponding event is typically handled by an ActionListener. The ActionListener interface provides a way to respond to events triggered by user interactions, such as button clicks. The correct answer to the question “What event results from the clicking of a button?” would be the “ActionEvent.”
To handle the button click event, you would typically register an ActionListener with the button, and the actionPerformed
method of the ActionListener would be called when the button is clicked. Inside the actionPerformed
method, you can specify the actions to be taken in response to the button click.
Here’s a simple example:
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
public class ButtonClickExample {
public static void main(String[] args) {
JFrame frame = new JFrame("Button Click Example");
JButton button = new JButton("Click Me");
// Register ActionListener for the button
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
// This method is called when the button is clicked
System.out.println("Button Clicked!");
}
});
frame.getContentPane().add(button);
frame.setSize(300, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
In this example, when the “Click Me” button is clicked, the actionPerformed
method is invoked, and it prints “Button Clicked!” to the console.