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18/06/2020 09:44:59 PM

Cách cài đặt khái niệm thừa kế bằng ngôn ngữ lập trình Java

package inheritanceDemo;

import java.util.*;

class person {

            int id;

            String name;

            person(int id, String name) {

                        this.id = id;

                        this.name = name;

            }

 

            public void input() {

                        Scanner objSc = new Scanner(System.in);

                        System.out.print("Nhap id:");

                        this.id = objSc.nextInt();

                        objSc.nextLine();

 

                        System.out.print("Nhap ten:");

                        this.name = objSc.nextLine();

            }

 

            public void output() {

                        System.out.println("id " + this.id + "name " + this.name);

            }

}

 

class employee extends person {

            int empId;

            float salary;

 

            employee(int id, String name, int empId, float salary) {

                        super(id, name);

                        this.empId = empId;

                        this.salary = salary;

            }

 

            public void input() {

                        Scanner objSc = new Scanner(System.in);

                        super.input();

                        System.out.print("empID:");

                        this.empId = objSc.nextInt();

 

                        System.out.print("Salary:");

                        this.salary = objSc.nextFloat();

            }

 

            public void output() {

                        super.output();

                        System.out.println("empId " + this.empId + "salary " + this.empId);

            }

}

public class demo {

            public static void main(String[] args) {

                        employee emp = new employee(10,"huytd",10,100);

                        emp.input();

                        emp.output();

 

            }

}

 

Trương Đình Huy


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