JavaSE-14.2.2【案例-List集合存储学生对象并遍历】

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package day5.lesson2;   import java.util.ArrayList; import java.util.Iterator; import java.util.List;   /* 2.3 案例-List集合存储学生对象并遍历     创建一个存储学生对象的集合，存储3个学生对象，使用程序实现在控制台遍历该集合  */ public class ListDemo2 {     public static void main(String[] args) {         List<Student> list = new ArrayList<>();           Student s1 = new Student("sam", 12);         Student s2 = new Student("amy", 11);         Student s3 = new Student("tom", 12);           list.add(s1);         list.add(s2);         list.add(s3);           //遍历方式1         Iterator<Student> it = list.iterator();         while (it.hasNext()){             Student s = it.next();             System.out.println(s.getName() + "," + s.getAge());         }           //遍历方式2         for(int i=0; i<list.size(); i++){             Student stu = list.get(i);             System.out.println(stu.getName() + "," + stu.getAge());         }       } }

　　

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package day5.lesson2;   public class Student {       private String name;     private int age;       public Student() {     }       public Student(String name, int age) {         this.name = name;         this.age = age;     }       public void setName(String name) {         this.name = name;     }       public void setAge(int age) {         this.age = age;     }       public String getName() {         return name;     }       public int getAge() {         return age;     } }