java—学生、大学生、研究生类

╰+哭是因爲堅強的太久メ 2022-05-10 19:48 263阅读 0赞

Description

定义Student学生类，拥有学号、姓名、性别属性，提供构造函数，以及相应属性的get set函数，提供函数attendClass(String className)表示上课。
    定义CollegeStudent大学生类继承自Student类，拥有新增属性专业，提供构造函数，提供新增属性的get和set函数
    定义GraduateStudent研究生类继承自CollegeStudent类，拥有新增属性导师，提供构造函数，提供新增属性的get和set函数，提供函数doResearch() 表示做研究（打印xx is doing research）。
    
    main函数中对构造的类进行测试

Input

学生类信息，学号、姓名、性别
    大学生类信息，学号、姓名、性别、专业
    研究生类信息，学号、姓名、性别、专业、导师

Output

学生类信息
    大学生类信息
    研究生类信息

Sample Input

1 liu female
    2 chen female cs
    3 li male sc wang

Sample Output

no: 1
    name: liu
    sex: female
    no: 2
    name: chen
    sex: female
    major: cs
    no: 3
    name: li
    sex: male
    major: sc
    supervisor: wang
    li is doing research

Pre Append Code

import java.util.Scanner;
    public class Main{
        public static void main(String[] args) {
             Scanner scan = new Scanner(System.in);      
             int no = scan.nextInt();
             String name = scan.next();      
             String sex = scan.next();      
             Student s = new Student(no, name, sex);
             s.print();
    
             no = scan.nextInt();
             name = scan.next();      
             sex = scan.next();      
             String major = scan.next();
             CollegeStudent c = new CollegeStudent(no, name, sex, major);
             c.print();
    
             no = scan.nextInt();
             name = scan.next();      
             sex = scan.next();      
             major = scan.next();
             String supervisor = scan.next();
             GraduateStudent g = new GraduateStudent(no, name, sex, major, supervisor );
             g.print();
             g.doResearch();
             scan.close(); 
        }
    }

class Student{
        
        private int no;
        private String sex;
        private String name;
        
        public Student(int no,String name,String sex) {
        
            this.no=no;
            this.name=name;
            this.sex=sex;
        }
    
        public int getNo() {
        
            return no;
        }
    
        public void setNo(int no) {
        
            this.no = no;
        }
    
        public String getSex() {
        
            return sex;
        }
        
        public void setSex(String sex) {
        
            this.sex = sex;
        }
    
        public String getName() {
        
            return name;
        }
    
        public void setName(String name) {
        
            this.name = name;
        }
    
        public void print()
        {
        
            System.out.println("no: "+no);
            System.out.println("name: "+name);
            System.out.println("sex: "+sex);
        }
    }
    class CollegeStudent extends Student {
        
        private String major;
        
        public CollegeStudent(int no, String name,String sex,String major) {
        
            super(no,name,sex);
            this.major = major;
        }
        public String getMajor() {
        
            return major;
        }
        
        public void setMajor(String major) {
        
            this.major = major;
        }
        
        public void print() {
        
            super.print();
            System.out.println("major: "+major);
        }
    }
    
    class GraduateStudent extends CollegeStudent{
        
        private String teacher;
        
        public GraduateStudent(int no,String name,String sex,String major,String teacher){
        
            super(no,name,sex,major);
            this.teacher = teacher;
        }
        
        public String getTeacher() {
        
            return teacher;
        }
        
        public void setTeacher(String teacher) {
        
            this.teacher = teacher;
        }
        
        public void print() {
        
            super.print();
            System.out.println("supervisor: "+teacher);
        }
        
        public void doResearch() {
        
            System.out.println(this.getName()+" is doing research");
        }
    }