Java ArrayList练习题

定义一个学生类，添加到集合，并遍历

 

import java.util.ArrayList;

public class Demo02ArrayList {
    public static void main(String[] args) {
        ArrayList<Student> stu = new ArrayList<>();
        Student student1 = new Student("小明", 27, "1231231231","男");
        Student student2 = new Student("小方", 22, "1232341231","男");
        Student student3 = new Student("小小", 23, "1231123121","男");
        Student student4 = new Student("小齐", 29, "1234231231","男");
        stu.add(student1);
        stu.add(student2);
        stu.add(student3);
        stu.add(student4);
        for (int i = 0; i < stu.size(); i++) {
            Student stu1 = stu.get(i);
            System.out.println("姓名："+stu1.getName()+"  "+"年龄："+stu1.getAge()+"  "+"学号："+stu1.getNo()+"  "+"性别："+stu1.getSex() );
        }
    }
}

 

学生类

 

public class Student {
    private String name;
    private int age;
    private String no;
    private String sex;

    public Student() {
    }

    public Student(String name, int age, String no, String sex) {
        this.name = name;
        this.age = age;
        this.no = no;
        this.sex = sex;
    }

    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;
    }

    public String getNo() {
        return no;
    }

    public void setNo(String no) {
        this.no = no;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }
}