java 类和对象基础练习1，学生信息；2种方法

第一种方法；对象初始化。

package com.hanqi;
import java.lang.*;
public class student
{
    int xuehao;
    String name;
    int age;
    
    student(int xuehao,String name,int age)
    {
        this.xuehao=xuehao;
        this.name=name;
        this.age=age;
    }
    void output()
    {
        System.out.println("学号："+xuehao+" "+"姓名："+name+" "+"年龄："+age);
    }
    

    public static void main(String[] args)
    {
        student s1=new student(44,"小明",21);
        s1.output();

    }

}

第二中方法，在主类的main方法中创建多个Student类的对象，使用这些对象来测

package com.hanqi;

public class textclass {

    public static void main(String[] args) 
    
    {
        student s1 = new student(1,"小明",21);
        
        s1.output();
         student s2 = new student(2,"小红",22);
        
        s2.output();
        student s3 = new student(3,"小文",23);
        
        s3.output();
         student s4 = new student(4,"小芳",24);
        
        s4.output();

    }

}