Java program to Perform Payroll Using Interface

//Java program to Perform Payroll Using Interface(Multiple Inheritance).

import java.io.*;

import java.lang.*;

interface salary

  {

    final double da=10.7;

    final double cps=10.0;

    final double hra=5.0;

    final double ma=15.0;

    final double nhi=10.0;

  }

class emppay

   {

     String name;

     double basicpay,netpay,grosspay;

     emppay(String n,double bp)

    {

      name=n;

     basicpay=bp;

    }

   }

class payslip extends emppay implements salary

  {

    double c1,h1,d1;

     payslip(String n1,double bp1)

    {

     super(n1,bp1);

    }

    public void paybill()

   {

    d1=basicpay*(da/100);

    h1=basicpay*(hra/100);

    c1=basicpay*(cps/100);

    netpay=basicpay+d1+h1+ma;

    grosspay=netpay-(c1+nhi);

   }

    void disp()

  {

   System.out.println("Name of The Employee :"+name +"\t payslip");

   System.out.println("\t Grosspay="+grosspay);

   System.out.println("\t Netpay="+netpay);

  }

 }

 class paybill

{

  public static void main(String arg[])throws IOException

 {

    String name;

    double pay;

   DataInputStream inp=new DataInputStream(System.in);

    System.out.println("Enter Name of Employee :");

    name=inp.readLine();

    System.out.println("Enter The Basicpay :");

    pay=Double.valueOf(inp.readLine());

    payslip p1=new payslip(name,pay);

    p1.paybill();

    p1.disp();

 }

}