1 class Dem1_Student{
2 public static void main(String[] args) {
3 print(10); //基本数据类型当作形式参数
4
5 Student s = new Student();
6 print(s); // 引用数据类型当作形式参数,需要传入一个地址 stu s 指向同一对象
7
8 }
9
10 public static void print(int x){
11 System.out.println(x);
12 }
13
14
15 public static void print(Student stu){
16 stu.name = "pan";
17 stu.age = 20;
18 stu.study();
19 }
20 }// 测试类
21
22 class Student{
23
24 String name;
25 int age;
26
27
28 public void study(){
29 System.out.println("study....s");
30 }
31
32
33
34 } //基本类