9.构造方法的使用

package com.itheima.constructor;

public class Student {
    

    private String name;
    private int age;
    public void show(){
        System.out.println(name+"...."+age);
    }


    public Student(String name, int age) {
        this.name = name;
        this.age = age;
        System.out.println("我是Student类的构造方法");
    }

    public Student() {

    }

    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;
    }
}

package com.itheima.constructor;

public class TestStudent {
    public static void main(String[] args) {
        Student stu1=new Student("张三",23);
        stu1.show();

        Student stu2=new Student();
        stu2.setName("李四");
        stu2.setAge(25);
        stu2.show();
    }
}