onoffswitch.java

来自「java编程思想是一本非常经典的书籍 此源码包涵了书籍的所有源码 书籍源码」· Java 代码 · 共 25 行

//: c09:OnOffSwitch.java
// Why use finally?
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

public class OnOffSwitch {
  private static Switch sw = new Switch();
  public static void f()
  throws OnOffException1,OnOffException2 {}
  public static void main(String[] args) {
    try {
      sw.on();
      // Code that can throw exceptions...
      f();
      sw.off();
    } catch(OnOffException1 e) {
      System.err.println("OnOffException1");
      sw.off();
    } catch(OnOffException2 e) {
      System.err.println("OnOffException2");
      sw.off();
    }
  }
} ///:~