人类

package Work20240709;public class Person {String name;String gender;int age;String nationality;public Person() {}public Person(String name, String gender, int age, String nationality) {this.name = name;this.gender = gender;this.age = age;this.nationality = nationality;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getGender() {return gender;}public void setGender(String gender) {this.gender = gender;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getNationality() {return nationality;}public void setNationality(String nationality) {this.nationality = nationality;}public void eat() {System.out.printf("来自%s的%s人%s,%d岁正在吃饭\n", this.nationality, this.gender,this.name, this.age);}public void sleep() {System.out.printf("来自%s的%s人%s,%d岁正在睡觉\n", this.nationality, this.gender,this.name, this.age);}public void work() {System.out.printf("来自%s的%s人%s,%d岁正在工作\n", this.nationality, this.gender,this.name, this.age);}
}

        学生类

package Work20240709;public class Student extends Person{String school;String number;public Student() {}public Student(String name, String gender, int age, String nationality, String school, String number) {super(name, gender, age, nationality);this.school = school;this.number = number;}public String getSchool() {return school;}public void setSchool(String school) {this.school = school;}public String getNumber() {return number;}public void setNumber(String number) {this.number = number;}@Overridepublic void work() {System.out.printf("来自%s学校的%d%s学生%s，学号是%s，正在学习\n", this.school,this.age, this.gender, this.name, this.number);}}

         工人类

package Work20240709;public class Worker extends Person{String unit;int workAge;public Worker() {}public Worker(String name, String gender, int age, String nationality, String unit, int workAge) {super(name, gender, age, nationality);this.unit = unit;this.workAge = workAge;}public String getUnit() {return unit;}public void setUnit(String unit) {this.unit = unit;}public int getWorkAge() {return workAge;}public void setWorkAge(int workAge) {this.workAge = workAge;}@Overridepublic void work() {System.out.printf("来自%s单位的%d%s工人%s，工龄是%d，正在盖房子\n", this.unit,this.age, this.gender, this.name, this.workAge);}
}

        学生干部类

package Work20240709;public class StudentLeader extends Student{String job;public StudentLeader() {}public StudentLeader(String name, String gender, int age,String nationality, String school, String number, String job) {super(name, gender, age, nationality, school, number);this.job = job;}public String getJob() {return job;}public void setJob(String job) {this.job = job;}public void meeting() {System.out.printf("来自%s学校的%d%s学生%s，学号是%s，职务是%s，正在开会\n", this.school,this.age, this.gender, this.name, this.number, this.job);}
}

        测试

package Work20240709;
import java.util.Scanner;
import java.util.ArrayList;
public class WorkTest {public static void main(String[] args) {Scanner sc = new Scanner(System.in);ArrayList<Student> studentsList = new ArrayList<>();ArrayList<Worker> workersList = new ArrayList<>();ArrayList<StudentLeader> studentLeadersList = new ArrayList<>();System.out.println("要录入多少个学生?");int n = sc.nextInt();for (int i = 0; i < n; i++){System.out.printf("请输入第%d个学生的姓名\n" , i + 1);String name = sc.next();System.out.printf("请输入第%d个学生的性别\n" , i + 1);String gender = sc.next();System.out.printf("请输入第%d个学生的年龄\n" , i + 1);int age = sc.nextInt();System.out.printf("请输入第%d个学生的国籍\n" , i + 1);String nationality = sc.next();System.out.printf("请输入第%d个学生的学校\n" , i + 1);String school = sc.next();System.out.printf("请输入第%d个学生的学号\n" , i + 1);String number = sc.next();Student s = new Student(name, gender, age, nationality, school, number);studentsList.add(s);}System.out.println("要录入多少个工人?");n = sc.nextInt();for (int i = 0; i < n; i++){System.out.printf("请输入第%d个工人的姓名\n" , i + 1);String name = sc.next();System.out.printf("请输入第%d个工人的性别\n" , i + 1);String gender = sc.next();System.out.printf("请输入第%d个工人的年龄\n" , i + 1);int age = sc.nextInt();System.out.printf("请输入第%d个工人的国籍\n" , i + 1);String nationality = sc.next();System.out.printf("请输入第%d个工人的单位\n" , i + 1);String unit = sc.next();System.out.printf("请输入第%d个工人的工作年限\n" , i + 1);int years = sc.nextInt();Worker w = new Worker(name, gender, age, nationality, unit, years);workersList.add(w);}System.out.println("要录入多少个学生干部?");n = sc.nextInt();for (int i = 0; i < n; i++){System.out.printf("请输入第%d个学生干部的姓名\n" , i + 1);String name = sc.next();System.out.printf("请输入第%d个学生干部的性别\n" , i + 1);String gender = sc.next();System.out.printf("请输入第%d个学生干部的年龄\n" , i + 1);int age = sc.nextInt();System.out.printf("请输入第%d个学生干部的国籍\n" , i + 1);String nationality = sc.next();System.out.printf("请输入第%d个学生干部的学校\n" , i + 1);String school = sc.next();System.out.printf("请输入第%d个学生干部的学号\n" , i + 1);String number = sc.next();System.out.printf("请输入第%d个学生干部的植物\n" , i + 1);String job = sc.next();StudentLeader s = new StudentLeader(name, gender, age, nationality, school, number, job);studentLeadersList.add(s);}show(studentsList, studentLeadersList, workersList);}public static void show(ArrayList<Student> studentsList,ArrayList<StudentLeader> studentLeaderList,ArrayList<Worker> workersList) {for (int i = 0; i < studentsList.size(); i++) {studentsList.get(i).work();studentsList.get(i).eat();studentsList.get(i).sleep();}for (int i = 0; i < studentLeaderList.size(); i++) {studentLeaderList.get(i).work();studentLeaderList.get(i).eat();studentLeaderList.get(i).sleep();studentLeaderList.get(i).meeting();}for (int i = 0; i < workersList.size(); i++) {workersList.get(i).work();workersList.get(i).eat();workersList.get(i).sleep();}}
}