JAVA_基础知识_值传递和引用传递

值传递：

 1 public class Demo01 {
 2     public static void main(String[] args) {
 3        int a=10;
 4        System.out.println(a);
 5        Demo01.change1(a);   //调用函数改变a的值结果仍然不变
 6        System.out.println(a);
 7     }
 8     public static void change1(int a){
 9         a=1;
10     }
11 }

引用传递：

 1 public class Demo01 {
 2     public static void main(String[] args) {
 3        Person person =new Person();
 4        System.out.println(person.name);
 5        Demo01.change(person);
 6        System.out.println(person.name);
 7     }
 8     public static void change(Person person){
 9         person.name="zhaolei";
10     }
11 }
12 
13 class Person{
14     String name;
15 }