myexception.java

Java 程序设计源码 只提供了部分

import java.lang.Exception;

public class MyException extends Exception {
  private int attribute;

  public MyException(int i) {
    attribute = i;
  }

  public String toString() {
    return "MyException[" + attribute + "]";
  }
}

class DemonException {
  static void compare(int a) throws MyException {
    System.out.println("called compare(" + a + ")");

    if(a > 5) {
      throw new MyException(a);
    }

    System.out.println("Normal Exit");
  }

  public static void main(String[] args) {
    try {
      compare(3);
      compare(15);
    }
    catch(MyException e) {
        System.out.println("Caught " + e);
    }
  }
}