final JLabel label = new JLabel("nonothing") 这里的一个类实例被声明为final代表什么呢? 多谢!
g*g
2 楼
Only means you can't assign label to another instance. if you later on do label = new JLabel("something"), it will yield compilation error. You can do label.setxxx() and change its fields however.
【在 n*******g 的大作中提到】 : final JLabel label = new JLabel("nonothing") : 这里的一个类实例被声明为final代表什么呢? : 多谢!
n*g
3 楼
thanks :)
【在 g*****g 的大作中提到】 : Only means you can't assign label to another instance. : if you later on do : label = new JLabel("something"), it will yield compilation error. : You can do label.setxxx() and change its fields however.