public class DeferenceMethod { public static void main(String[] args){ //基本类型传参 int x=4; show1(x); System.out.println("x is "+x); //引用类型传参 Demo d=new Demo(); d.y=4; show2(d); System.out.println("d is "+d.y); } public static void show1(int x){ x=5; //return x; } public static void show2(Demo D){ D.y=6; } } class Demo{ int y; //方法 }
总结:对象作为参数就像传入的是地址