List集合存储学生对象用三种方式遍历

package package5;

import package4.Student;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

//List集合存储学生对象用三种方式遍历
public class Test {
    public static void main(String[] args) {
        //创建集合对象
        List<Student> list =new ArrayList<>();
        //创建学生对象
        package4.Student s1 =new package4.Student("张三",21);
        package4.Student s2 =new package4.Student("李四",22);
        package4.Student s3 =new Student("王五",23);
        //添加到集合中
        list.add(s1);
        list.add(s2);
        list.add(s3);

        //迭代器：集合特有的遍历方式
        Iterator<Student> it = list.iterator();
        while(it.hasNext()){
            Student s = it.next();
            System.out.println(s.getName()+", "+s.getAge());
        }
        System.out.println("--------------");
        //普通for：带有索引的遍历方式
        for (int i = 0; i < list.size(); i++) {
            Student s = list.get(i);
            System.out.println(s.getName()+", "+s.getAge());
        }
        System.out.println("--------------");
        //增强for：最方便的遍历方式
        for(Student s:list){
            System.out.println(s.getName()+", "+s.getAge());
        }
    }
}