onoffswitch.java

网络书店的设计与实现 网络书店的设计与实现

//: c10:OnOffSwitch.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Why use finally?

public class OnOffSwitch {
  static Switch sw = new Switch();
  public static void main(String[] args) {
    try {
      sw.on();
      // Code that can throw exceptions...
      sw.off();
    } catch(NullPointerException e) {
      System.out.println("NullPointerException");
      sw.off();
    } catch(IllegalArgumentException e) {
      System.out.println("IOException");
      sw.off();
    }
  }
} ///:~