集合框架（Collection存储字符串和自定义对象遍历）

 1 package Day15;
 2 
 3 public class Student3 {
 4    private  String name;
 5    private int age;
 6 
 7    //构造方法
 8     public Student3(){
 9         super();
10     }
11     public  Student3(String name,int age){
12         super();
13         this.name =name;
14         this.age =age;
15     }
16 
17     //setXxx和getXxx方法
18 
19     public void setName(String name) {
20         this.name = name;
21     }
22 
23     public void setAge(int age) {
24         this.age = age;
25     }
26 
27     public String getName() {
28         return name;
29     }
30 
31     public int getAge() {
32         return age;
33     }
34 
35     //进行对toString方法的重写---方便直接调用对象时输出
36 
37     @Override
38     public String toString() {
39         return "Student3{" +
40                 "name="" + name + """ +
41                 ", age=" + age +
42                 "}";
43     }
44 
45 }