Java 从其他类访问变量
我有两个不是主类的类,但是我想让B类访问来自A类的变量。我不知道怎么做Java 从其他类访问变量,java,Java,我有两个不是主类的类,但是我想让B类访问来自A类的变量。我不知道怎么做 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
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;
}
}
因为类A中的变量是公共的,所以可以执行以下操作
public class B{
int Cakes;
public void addUp(A obj)
{
Cakes = obj.humanCakes + 4;
}
}
请注意,为了获得对humanCakes变量的引用,必须将A对象传递到addUp方法中您忘记定义变量了。正如所写,您的代码不会编译/可能重复