/*
请写出一个标准的学生类(Student)Student:成员变量：name,age,sex构造方法：无参构造方法，带三个参数的构造方法成员方法：A:get/set方法B:把所有成员变量的值输出的方法(show)*/
class Student3 {private String name;private int age;private String sex;Student3(String name, int age) {}Student3(String name, int age, String sex) {this.name = name;this.age = age;this.sex = sex;}public void setName(String name) {this.name = name;}public void setAge(int age) {this.age = age;}public void setSex(String sex) {this.sex = sex;}public String getName() {return this.name;}public int getAge() {return this.age;}public String getSex() {return this.sex;}}class Student4 extends Student3{//子类定义构造器，父类有的子类也要有,接收创建对象时候传递的参数Student4(String name,int age,String sex){//传递给父类赋值super(name, age,sex);}public void study(){System.out.println(getName()+" "+getAge()+" "+getSex());}
}public class StudentDome{public static void main(String[] args) {//初始赋值Student3 s = new Student3("张三", 18, "女");Student4 st = new Student4(" ", 0, "未知");//后续赋值st.setName("李四");st.setSex("男");st.setAge(100);st.study();}}