Java 实例 - 自定义异常

以下实例演示了通过继承 Exception 来实现自定义异常：

/*
 author by shouce.ren
 TestInput.java
 */
 
class WrongInputException extends Exception {
   WrongInputException(String s) {
      super(s);
   }
}
class Input {
   void method() throws WrongInputException {
      throw new WrongInputException("Wrong input");
   }
}
class TestInput {
   public static void main(String[] args){
      try {
         new Input().method();
      }
     catch(WrongInputException wie) {
         System.out.println(wie.getMessage());
      }
   } 
}

以上代码运行输出结果为：

Wrong input