package day4_demo;

//student类

public class Day4_demo8class_object {

//成员变量

String name;

int age;

// 成员方法

public void sleep(String who)

{

System.out.println(who+"去睡觉");

}

public void eat()

{

System.out.println("吃饭");

}

public static class Day4_demo11class_return {

public static void main(String[] args) {

Day4_demo8class_object stu = new Day4_demo8class_object();

Day4_demo8class_object stu1 = getStudent();

System.out.println(stu1.name);

System.out.println(stu1.age);

}

public static Day4_demo8class_object getStudent() {

Day4_demo8class_object stu = new Day4_demo8class_object();

stu.name = "易烊千玺";

stu.age = 20;

return stu;

}

}

public static class Day4_demo_Person {

public static void main(String[] args) {

/* Day4_Person person=new Day4_Person();

person.show();

person.name="赵丽颖";

person.setAge(20);

person.show();

int a=person.getAge();

System.out.println(a);

*/

Day4_Person person=new Day4_Person();

person.setAge(30);

person.setMale(true);

System.out.println("年龄："+person.getAge());

System.out.println("是不是男生"+person.isMale());

}

}

}