class Annoyance extends Exception {}
class Sneeze extends Annoyance {}
class Human {
public static void main(String[] args)
throws Exception {
try {
try {
throw new Sneeze();
}
catch ( Annoyance a ) {
System.out.println("Caught Annoyance");
throw a;//抛出一个Annoyance引用
}
}
catch ( Sneeze s ) {
//被抓取到Annoyance引用 相当于 a = new Sneeze();多态(子类对象指向父类引用)
//父类抛出的异常 子类异常是无法处理的
System.out.println("Caught Sneeze");
return ;
}
finally {
System.out.println("Hello World!");
}
}
}
x
1
class Annoyance extends Exception {}
2
class Sneeze extends Annoyance {}
3
4
class Human {
5
6
public static void main(String[] args)
7
throws Exception {
8
try {
9
try {
10
throw new Sneeze();
11
}
12
catch ( Annoyance a ) {
13
System.out.println("Caught Annoyance");
14
throw a;//抛出一个Annoyance引用
15
}
16
}
17
catch ( Sneeze s ) {
18
//被抓取到Annoyance引用 相当于 a = new Sneeze();多态(子类对象指向父类引用)
19
//父类抛出的异常 子类异常是无法处理的
20
System.out.println("Caught Sneeze");
21
return ;
22
}
23
finally {
24
System.out.println("Hello World!");
25
}
26
}
27
}
28
输出:
Caught Annoyance
Caught Sneeze
Hello World!