java学生信息管理

需求：学生有姓名和年龄信息，学生可以进行自我介绍。班级有班级名称和人数（班级最多容纳50人），实现向班级中添加学生，输出班级所有学生。
1、学生类：属性（姓名、年龄）；行为（自我介绍）
2、班级类：属性（班级名称、人数）；行为（添加学生，显示所有学生信息）
3、测试类：对数据的输入输出
注：不用list，下面有个半成品代码，add（）里面不知道如何写，要怎样才能添加学生信息？学生类和班级类里的数组如果数值传递？

package text;

class Student{
    private String name;
    private int 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;
    }
    
    public Student(String name, int age) {
        super();
        this.name = name;
        this.age = age;
    }
    
    public Student() {
        super();
        // TODO 自动生成的构造函数存根
    }
    public  String sey() {
        
        return "姓名" + name +" 年龄" + age;
    }
}

class MyClass{
    private String className;
    private Student[] arr= new Student[50];
    public void add() {
    }
}

public class One {
    public static void main(String[] args) {
        Student stu = new Student("王",20);
        Student stu1 = new Student("小",24);
        System.out.println(stu.sey());
        System.out.println(stu1.sey());
    }
}

使用数组确实不太好用

package text;
 
class Student{
    private String name;
    private int 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;
    }
    
    public Student(String name, int age) {
        super();
        this.name = name;
        this.age = age;
    }
    
    public Student() {
        super();
        // TODO 自动生成的构造函数存根
    }
    public  String sey() {
        
        return "姓名" + name +" 年龄" + age;
    }
}
 
class MyClass{
    private String className;
    private Student[] arr= new Student[50];
    public void add(Student st) {
        for(int i =0;i<arr.length;i++){
         if(arr[i]==null){
            arr[i] = st;
            return;
         } 
        }
    }
  public void showAll(){
    for(int i=0;i<arr.length;i++){
      if(arr[i]!=null){
        System.out.println(arr[i].sey());
      }
    }
  }
}
 
public class One {
    public static void main(String[] args) {
        Student stu = new Student("王",20);
        Student stu1 = new Student("小",24);
        System.out.println(stu.sey());
        System.out.println(stu1.sey());
        MyClass myClass = new MyClass();
        myClass.add(stu);
        myClass.add(stu1);
        myClass.showAll();
    }
}
 
 

要求用数组？一般不都是用列表吗？

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

class Student{
    private String name;
    private int 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;
    }

    public Student(String name, int age) {
        super();
        this.name = name;
        this.age = age;
    }

    public Student() {
        super();
        // TODO 自动生成的构造函数存根
    }
    public  String say() {
        return "姓名" + name +" 年龄" + age;
    }
}

class MyClass{
    private String className;
    private int number;
    private Student[] arr= new Student[50];
    private List<Student> studentList = new ArrayList<>();
    public void add(Student stu) {
        studentList.add(stu);
    }
    public void showAll()
    {
        for (Student student: studentList)
        {
            System.out.println(student.getName()+student.getAge());
        }
    }
}

public class One {
    public static void main(String[] args) {
        Student stu = new Student("王",20);
        Student stu1 = new Student("小",24);
        System.out.println(stu.say());
        System.out.println(stu1.say());
        MyClass myClass = new MyClass();
        myClass.add(stu);
        myClass.add(stu1);
        myClass.showAll();
    }
}

我写过客户信息管理，也是用的数组，你可以参考一下把客户改成学生管理就行！
https://guanzhu-aniu.blog.csdn.net/article/details/126499769