//: c13:CheckBox1.java
// From Thinking in Java, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Using check boxes
// <applet code=CheckBox1 width=200 height=200>
// </applet>
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

public class CheckBox1 extends JApplet {
  JTextArea t = new JTextArea(6, 15);
  JCheckBox 
    cb1 = new JCheckBox("Check Box 1"),
    cb2 = new JCheckBox("Check Box 2"),
    cb3 = new JCheckBox("Check Box 3");
  public void init() {
    cb1.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e){
        trace("1", cb1);
      }
    });
    cb2.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e){
        trace("2", cb2);
      }
    });
    cb3.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e){
        trace("3", cb3);
      }
    });
    Container cp = getContentPane();
    cp.setLayout(new FlowLayout());
    cp.add(t); 
    cp.add(cb1); 
    cp.add(cb2); 
    cp.add(cb3);
  }
  void trace(String b, JCheckBox cb) {
    if(cb.isSelected())
      t.append("Box " + b + " Set\n");
    else
      t.append("Box " + b + " Cleared\n");
  }
} ///:~