/* *题目:自定义4个学生对象,添加到集合,并遍历 * * 思路 * 1.创建一个Student学生类,四个部分 * 2.创建一个集合,用来存储学生对象,泛型<Student> *3.根据类,创建四个学生对象 * 4.将4个学生添加到集合中:add * 5.遍历集合:for、size、get * * */ import java.util.ArrayList; public class Demo02ArrayListStudent { public static void main(String[] args) { ArrayList<Student>list=new ArrayList<>(); Student one = new Student("洪七公",20); Student two = new Student("欧阳锋",22); Student there = new Student("黄药师",21); Student four = new Student("段智兴",26); list.add(one); list.add(two); list.add(there); list.add(four); // for (int i = 0; i < list.size(); i++) { Student stu=list.get(i); System.out.println("姓名:"+stu.getName()+",年龄:"+stu.getAge()); } } }
package demo05; public class Student { private String name; private int age; public Student() { } public Student(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }