int Divide(int a,int b)throws FileNotFoundException,DivisorIsMinusException...{ //MyChildException类覆盖了MyException类的Divide()方法，但是抛出了FileNotFoundException异常类
return a/b;
}
}
class DivisorIsMinusException extends Exception...{DivisorIsMinusException(String str)...{super(str);}}class MyExceptionTest...{public static void main(String[] args)...{MyException exception=new MyException();
