Employee Salary Based Program in Java

import java.util.*;
/**
 * Define a class employee with the following members to compute the salary slip of an employee.
 * @author (Afaq)
 */
public class Employee
{
    int empno;
    String name;
    float salary, hra, da, it, gp;
    Employee()
    {
        empno=0;
        name = "";
        salary = 0.0f;
        hra = 0.0f;
        da = 0.0f;
        it = 0.0f;
        gp = 0.0f;
    }
    void unit()
    {
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter Employee number=");
        empno = sc.nextInt();
        System.out.print("Enter name=");
        name = sc.next();
        System.out.print("Enter salary=");
        salary = sc.nextFloat();
    }
    void calc()
    {
        hra = salary * 0.1f;
        da = salary * 0.555f;
        it = salary * 0.06f;
        gp = salary + hra + da - it ;
        
    }
    void display()
    {
        System.out.println("             Salary Slip\n");
        System.out.println("Employee number="+empno);
        System.out.println("Name="+name);
        System.out.println("Basic pay="+salary);        
        System.out.println("Housing Rent Allowance="+hra);    
        System.out.println("Dearness Allowance="+da);
        System.out.println("Income Tax="+it);
        System.out.println("Grass pay="+gp);
    }
    public static void main(String args[])
    {
        Employee e = new Employee();
        e.unit();
        e.calc();
        e.display();
    }
}