爱一万年够不够
问题描述
鉴于此代码:
String test() {
try {
return "1";
} finally {
return "2";
}
}
语言规范是否定义了调用 test() 的返回值?换句话说:在每个 JVM 中它总是相同的吗?
Do the language specifications define the return value of a call to test()? In other words: Is it always the same in every JVM?
在 Sun JVM 中，返回值为 2，但我想确定，这与 VM 无关.
In the Sun JVM the return value is 2, but I want to be sure, that this is not VM-dependant.
推荐答案
是的，语言规范 定义2"是结果.如果 VM 的做法有所不同，则说明它不符合规范.
Yes, the language spec defines that "2" is the result. If a VM does it differently, it's not spec-compliant.
大多数编译器都会抱怨它.例如 Eclipse 会声称返回块永远不会被执行，但这是错误的.
Most compilers will complain about it. Eclipse, for example, will claim that the return block will never be executed, but it's wrong.
编写这样的代码是非常糟糕的做法，永远不要这样做:)
It's shockingly bad practice to write code like that, don't ever do it :)
