[英]SCJP with label
Below will be compilation fail due to "label z is missing" but if I just move z: to one step below after o = o + 2 then that will work? 由于“缺少标签z”,下面的编译会失败,但如果我只是在o = o + 2之后将z:移动到下面的一步,那么这将有效吗? What is the logic behind this?
这背后的逻辑是什么?
public class Breaker {
static String o = "";
public static void main(String[] args) {
z:
o = o + 2;
for (int x = 3; x < 8; x++) {
if (x == 4)
break;
if (x == 6)
break z;
o = o + x;
}
System.out.println(o);
}
}
You cannot put the labels everywhere in the code. 您无法在代码中随处放置标签。 it should be only before statements.
它应该只在陈述之前。 in this case
labelname: for(;;){}
Here's the documentation 在这种情况下
labelname: for(;;){}
这是文档
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