Java Program to Generate Payslip Using Inheritance

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Aim:

To develop a java application to generate pay slip for different category of employees using the concept of inheritance.

Procedure:

  1. Create the class employee with name, Empid, address, mailid, mobileno as members.
  2. Inherit the classes programmer, asstprofessor,associateprofessor and professor from
  3. employee class.
  4. Add Basic Pay (BP) as the member of all the inherited classes.
  5. Calculate DA as 97% of BP, HRA as 10% of BP, PF as 12% of BP, Staff club fund as 0.1% of
  6. BP.
  7. Calculate gross salary and net salary.
  8. Generate payslip for all categories of employees.
  9. Create the objects for the inherited classes and invoke the necessary methods to display the
  10. Payslip.

Program:

import java.util.*;
class employee
{
 int empid;
 long mobile;
String name, address, mailid;
Scanner get = new Scanner(System.in);
void getdata()
{
 System.out.println("Enter Name of the Employee");
 name = get.nextLine();
 System.out.println("Enter Mail id");
 mailid = get.nextLine();
 System.out.println("Enter Address of the Employee:");
 address = get.nextLine();
 System.out.println("Enter employee id ");
 empid = get.nextInt();
 System.out.println("Enter Mobile Number");
 mobile = get.nextLong();
 }
 void display()
 {
 System.out.println("Employee Name: "+name);
 System.out.println("Employee id : "+empid);
 System.out.println("Mail id : "+mailid);
 System.out.println("Address: "+address);
 System.out.println("Mobile Number: "+mobile);
 }
}
class programmer extends employee
{
double salary,bp,da,hra,pf,club,net,gross;
void getprogrammer()
{
System.out.println("Enter basic pay");
bp = get.nextDouble();
}
void calculateprog()
{
da=(0.97*bp);
hra=(0.10*bp);
pf=(0.12*bp);
club=(0.1*bp);
gross=(bp+da+hra);
net=(gross-pf-club);
System.out.println("************************************************");
System.out.println("PAY SLIP FOR PROGRAMMER");
System.out.println("************************************************");
System.out.println("Basic Pay:Rs"+bp);
System.out.println("DA:Rs"+da);
System.out.println("PF:Rs"+pf);
System.out.println("HRA:Rs"+hra);
System.out.println("CLUB:Rs"+club);
System.out.println("GROSS PAY:Rs"+gross);
System.out.println("NET PAY:Rs"+net);
}
}	
class asstprofessor extends employee
{
double salary,bp,da,hra,pf,club,net,gross;
void getasst()
{
System.out.println("Enter basic pay");
bp = get.nextDouble();
}
void calculateasst()
{
da=(0.97*bp);
hra=(0.10*bp);
pf=(0.12*bp);
club=(0.1*bp);
gross=(bp+da+hra);
net=(gross-pf-club);
System.out.println("************************************************");
System.out.println("PAY SLIP FOR ASSISTANT PROFESSOR");
System.out.println("************************************************");
System.out.println("Basic Pay:Rs"+bp);
System.out.println("DA:Rs"+da);
System.out.println("HRA:Rs"+hra);	
System.out.println("PF:Rs"+pf);
System.out.println("CLUB:Rs"+club);
System.out.println("GROSS PAY:Rs"+gross);
System.out.println("NET PAY:Rs"+net);
 }
}
class associateprofessor extends employee
{
double salary,bp,da,hra,pf,club,net,gross;
 void getassociate()
{
System.out.println("Enter basic pay");
bp = get.nextDouble();
}
void calculateassociate()
{
da=(0.97*bp);
hra=(0.10*bp);
pf=(0.12*bp);
club=(0.1*bp);
gross=(bp+da+hra);
net=(gross-pf-club);
System.out.println("************************************************");
System.out.println("PAY SLIP FOR ASSOCIATE PROFESSOR");
System.out.println("************************************************");
System.out.println("Basic Pay:Rs"+bp);
System.out.println("DA:Rs"+da);
System.out.println("HRA:Rs"+hra);
System.out.println("PF:Rs"+pf);
System.out.println("CLUB:Rs"+club);
System.out.println("GROSS PAY:Rs"+gross);
System.out.println("NET PAY:Rs"+net);
}
}
class professor extends employee
{
double salary,bp,da,hra,pf,club,net,gross;
void getprofessor()
{
System.out.println("Enter basic pay");
bp = get.nextDouble();
}
void calculateprofessor()
{
da=(0.97*bp);
hra=(0.10*bp);
pf=(0.12*bp);
club=(0.1*bp);
gross=(bp+da+hra);
net=(gross-pf-club);
System.out.println("************************************************");
System.out.println("PAY SLIP FOR PROFESSOR");
System.out.println("************************************************");
System.out.println("Basic Pay:Rs"+bp);
System.out.println("DA:Rs"+da);
System.out.println("HRA:Rs"+hra);
System.out.println("PF:Rs"+pf);
System.out.println("CLUB:Rs"+club);
System.out.println("GROSS PAY:Rs"+gross);
System.out.println("NET PAY:Rs"+net);
}
}
class salary
{
public static void main(String args[])
{
int choice,cont;
do
{
System.out.println("PAYROLL");
System.out.println(" 1.PROGRAMMER \t 2.ASSISTANT PROFESSOR \t 3.ASSOCIATE 
PROFESSOR \t 4.PROFESSOR ");
Scanner c = new Scanner(System.in);			
choice=c.nextInt();
switch(choice)
{
case 1:
{
programmer p=new programmer();	
p.getdata();
p.getprogrammer();
p.display();
p.calculateprog();
break;	
}
case 2:
{
asstprofessor asst=new asstprofessor();	
asst.getdata();
asst.getasst();
asst.display();
asst.calculateasst();
break;
}
case 3:
{
associateprofessor asso=new associateprofessor();	
asso.getdata();
asso.getassociate();
asso.display();
asso.calculateassociate();
break;
}
case 4:
{
professor prof=new professor();	
prof.getdata();
prof.getprofessor();
prof.display();
prof.calculateprofessor();
break;
}
}
System.out.println("Do u want to continue 0 to quit and  1 to continue ");
cont=c.nextInt();
}while(cont==1);		
}
}

Output:

Result:

Thus the java application to generate pay slips for different categories of employees was implemented using inheritance and the program was executed successfully.

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