更新时间:2022-05-08 03:30:26
我能想到的另一件事是:
One extra thing I can think of:
实例变量被赋予默认值,如果是对象引用则为null,如果是int,则为0。
Instance variables are given default values, ie null if it's an object reference, 0 if it's an int.
局部变量没有得到默认值,因此需要显式初始化(如果你不这样做,编译器通常会抱怨)。
Local variables don't get default values, and therefore need to be explicitly initialized (and the compiler usually complains if you fail to do this).