三种方式遍历ArrayList

package com.Test01;

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

public class ArrayListDemo {    public static void main(String[] args) {        //创建ArrayList集合对象        ArrayList<Student> array = new ArrayList<Student>();

        //创建学生对象  提前定义学生类        Student s1 = new Student("王五",20);        Student s2 = new Student("张五",21);        Student s3 = new Student("李五",22);

        //添加学生对象到集合中

        array.add(s1);array.add(s2);array.add(s3);

        //迭代器遍历集合:集合特有的遍历方式        Iterator<Student> it = array.iterator();        while(it.hasNext()) {            Student s = it.next();            System.out.println(s.getName()+","+s.getAge());        }        System.out.println("------------------------");

        //普通for遍历，带有索引        for(int i = 0;i<array.size();i++) {            Student s = array.get(i);            System.out.println(s.getName()+","+s.getAge());        }        System.out.println("-----------------------");

        //增强for遍历        for(Student s : array) {            System.out.println(s.getName()+","+s.getAge());        }

    }}

原文地址：https://www.cnblogs.com/lsswudi/p/11407915.html