/** A very simple example of a Java GUI application that responds
** to button events.
**/
// AWT components and Event classes used:
import java.awt.Button;
import java.awt.Frame;
import java.awt.event.ActionListener; // interface
import java.awt.event.ActionEvent; // events that interface relates to
public class SimpleGUI2 implements ActionListener {
private Frame appFrame = null;
private Button doSomethingButton = null;
public static void main(String[] args) {
SimpleGUI2 app = new SimpleGUI2();
app.run();
}
/** Constructor: make a frame to hold the GUI components and the
** GUI components themselves.
**/
public SimpleGUI2() {
appFrame = new Frame("Simple Java GUI");
doSomethingButton = new Button("Do Something");
// This object that is being constructed agrees to listen for
// events the button will generate.
doSomethingButton.addActionListener(this);
appFrame.add(doSomethingButton);
}
/** run the application
**/
public void run() {
appFrame.validate();
appFrame.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
System.out.println("You pressed the button");
}
}
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