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我有2个类不是主类,但我希望类B从类A访问变量。我不知道该怎么做。从其他类访问变量
public class A (
public int humanCakes;
//This method is called by somewhere, when it is called it adds one
public void humanCakes() {
huamnCakes ++;
}
)
public class B {
public void addUp() {
Cakes = humanCakes + 4;
}
}
你忘了定义你的变量。正如你写的代码不会编译/ –
[getters和setters如何工作?]的可能重复(http://stackoverflow.com/questions/2036970/how-do-getters-and-setters-work) –