//: c10:Switch.java 
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
public class Switch {
  boolean state = false;
  boolean read() { return state; }
  void on() { state = true; }
  void off() { state = false; }
} ///:~