package horstmann.ch04_action1;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;

public class ActionTester
{
  public static void main(String[] args)
  {
    JFrame frame = new JFrame();

    final int FIELD_WIDTH = 20;
    final JTextField textField = new JTextField(FIELD_WIDTH);
    textField.setText("Click a button!");

    JButton helloButton = new JButton("Say Hello");

    helloButton.addActionListener(event -> textField.setText("Hello, World!"));

    JButton goodbyeButton = new JButton("Say Goodbye");

    goodbyeButton.addActionListener(event -> textField.setText("Goodbye, World!"));

    frame.setLayout(new FlowLayout());

    frame.add(helloButton);
    frame.add(goodbyeButton);
    frame.add(textField);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
  }
}