Java Inheritance

About This Project

This project demonstrates inheritance in Java. A base class called Office stores common employee details, and two subclasses — Teaching and Non_teaching — inherit those fields and add their own designation.

Features

Base class Office with employee number, name, and salary
Subclasses Teaching and Non_teaching inherit from Office
setData() reads employee details from the user
getData() prints the stored employee details
Two objects created and displayed in main()

Source Code

import java.util.Scanner;

class Office
{
    int empNo;
    String empName;
    int salary;
}
class Teaching extends Office
{
    String designation;

    void setData()
    {
        Scanner sc = new Scanner(System.in);
        
        System.out.println("Enter Employee Number: ");
        empNo = sc.nextInt();

        System.out.println("Enter Employee Name: ");
        empName = sc.next();

        System.out.println("Enter Employee Salary: ");
        salary = sc.nextInt();

        System.out.println("Enter Employee Designation: ");
        designation = sc.next();
    }
    void getData()
    {
        System.out.println("Employee Name: " + empName + "\t\tEmployee Number: " + empNo);
        System.out.println("Employee Salary: " + salary + "\t\tEmployee Designation: " + designation);
    }
}

class Non_teaching extends Office
{
    String designation;

    void setData()
    {
        Scanner sc = new Scanner(System.in);
        
        System.out.println("Enter Employee Number: ");
        empNo = sc.nextInt();

        System.out.println("Enter Employee Name: ");
        empName = sc.next();

        System.out.println("Enter Employee Salary: ");
        salary = sc.nextInt();

        System.out.println("Enter Employee Designation: ");
        designation = sc.next();
    }
    void getData()
    {
        System.out.println("Employee Name: " + empName + "\t\tEmployee Number: " + empNo);
        System.out.println("Employee Salary: " + salary + "\t\tEmployee Designation: " + designation);
    }
}
public class Inheritance
{
    public static void main(String[] args)
    { 

        Teaching t1 = new Teaching();
        Non_teaching nt1 = new Non_teaching();

        System.out.println("Data about Teaching Class: \n");
        t1.setData();
        t1.getData();

        System.out.println("\nData about Non Teaching Class: \n");
        nt1.setData();
        nt1.getData();

    }
}

How It Works

The base class Office stores common employee fields: number, name, and salary
Teaching and Non_teaching extend Office, inheriting those fields and adding a designation
setData() prompts the user and stores the employee details
getData() prints the employee details to the console
main() creates one teaching employee and one non-teaching employee, then shows both

Concepts Used

Inheritance

Scanner Input

Methods

Class Hierarchy