对象的引用传递 ——面向对象3

引用传递 class Ref1{ int temp=10; } public class RefDemo01{ public static void main(String args[]){ Ref1 r1=new Ref1();//实例化对象 r1.temp=20; System.out.println(r1.temp); tell(r1); System.out.println(r1.temp

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