// File: TwoButton2.java (Module 10)
//
// Author: Rahul Simha
// Created: November 2, 2000
//
// Two button example - with local classes

import java.awt.*;
import javax.swing.*;
import java.awt.event.*; 

class NewFrame extends JFrame 
  implements ActionListener {

  // Data.
  JButton quitB;              // Quit button.
  JButton helloB, worldB;     // Two silly buttons.

  // Constructor.
  public NewFrame (int width, int height)
  {
    // Set the title and other frame parameters.
    this.setTitle ("Two canvas example");
    this.setResizable (true);
    this.setSize (width, height);

    // We'll use a flowlayout
    Container cPane = this.getContentPane();
    cPane.setLayout (new FlowLayout());

    // Quit button
    quitB = new JButton ("Quit");
    quitB.setBackground (Color.red);

    // Local class definition.
      class QuitActionListener implements ActionListener {
        public void actionPerformed (ActionEvent a)
        {
          System.exit (0);
        }
      }
      
    // Instantiate local class.
    QuitActionListener qListener = new QuitActionListener();
    // Add the listener to the button.
    quitB.addActionListener (qListener);
    // Finally, add the button to the frame.
    cPane.add (quitB);

    // "Hello" button
    helloB = new JButton ("Hello");
    helloB.setBackground (Color.green);
    helloB.addActionListener (this);
    cPane.add (helloB);

    // "World" button
    worldB = new JButton ("World");
    worldB.setBackground (Color.green);
    worldB.addActionListener (this);
    cPane.add (worldB);

    // Show the frame.
    this.setVisible (true);
  }

  // Need this method for the ActionListener interface.
  public void actionPerformed (ActionEvent a)
  {
    // Get the button string.
    String s = a.getActionCommand();
    if (s.equalsIgnoreCase ("Quit"))
      System.out.println ("This case cannot occur");
    else if (s.equalsIgnoreCase ("Hello")) {
      System.out.print ("Hello ");
    }
    else if (s.equalsIgnoreCase ("World")) {
      System.out.println ("World!");
    }
  }

} // End of class "NewFrame"


public class TwoButton2 {

  public static void main (String[] argv)
  {
    NewFrame nf = new NewFrame (300, 200);
  }

}