类

“`
public class student {

String name;String sex;int age;     //定义类的三个属性public  student(String name,String sex, int age){    this.name=name;    this.sex=sex;    this.age=age;}void showInfo(){    System.out.println("姓名:"+name);    System.out.println("性别:"+sex);    System.out.println("年龄:"+age);}public static void main(String[] args) {    // TODO 自动生成的方法存根    student stu=new student("李杰","男",20);    System.out.println("学生的信息");    stu.showInfo();}

}

“`