1.
void looper() { int x = 0; one: while (x < 10) { two: System.out.println(++x); if (x > 3) { break two; } } }
break适用场合:<1>switch<2>for/while循环
if语句中也不能用~【注】将two换成one就可以了。
2.
"this" keyword can not appears in the main method, because static method can not references a member variable like "this";
3.这样赋值也是合法的:
Integer[] a=new Integer[5]; for(int i=0;i<5;a[i++]=i*10);
4.方法名和类名相同,而且也不是构造子,也是合法的,不过不推荐而已。
public class ClazzA { public void ClazzA(){ return; } }