我说说两个曾经被人EMBARASS的问题 - 未名空间MITBBS历史存档

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我说说两个曾经被人EMBARASS的问题

我说说两个曾经被人EMBARASS的问题# Java - 爪哇娇娃

F*n2009-08-09 07:08

1 楼

1. Does Java support goto (You can type goto in Eclipse and you will be
cheated...)
2. How to declare label in Java ( I sincerely did not know).

g*g2009-08-09 07:08

2 楼

hehe, I don't think you can use goto, but you can use
label:
break label;
That can be handy in multiple level of iterations.

【在 F****n 的大作中提到】

: 1. Does Java support goto (You can type goto in Eclipse and you will be
: cheated...)
: 2. How to declare label in Java ( I sincerely did not know).

c*t2009-08-09 07:08

3 楼

Java can break to a label (which must occur before the loop in which
the break is located). It can be used to break out several loops at
once.
To do a forward break (i.e. goto), you can use a simple trick like this:
do
{
if (...)
break;
}
while (false);

【在 F****n 的大作中提到】

: 1. Does Java support goto (You can type goto in Eclipse and you will be
: cheated...)
: 2. How to declare label in Java ( I sincerely did not know).

T*g2009-08-09 07:08

4 楼

没GOTO，不过好像JCP打算要加。
label之在循环能用。没啥价值吧。。。

【在 F****n 的大作中提到】

: 1. Does Java support goto (You can type goto in Eclipse and you will be
: cheated...)
: 2. How to declare label in Java ( I sincerely did not know).