rethrownew.java

java的异常部分ppt

//: c10:RethrowNew.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Rethrow a different object 
// from the one that was caught.

class OneException extends Exception {
  public OneException(String s) { super(s); }
}

class TwoException extends Exception {
  public TwoException(String s) { super(s); }
}

public class RethrowNew {
  public static void f() throws OneException {
    System.out.println(
      "originating the exception in f()");
    throw new OneException("thrown from f()");
  }
  public static void main(String[] args) 
  throws TwoException {
    try {
      f();
    } catch(OneException e) {
      System.err.println(
        "Caught in main, e.printStackTrace()");
      e.printStackTrace(System.err);
      throw new TwoException("from main()");
    }
  }
} ///:~