Hi Friend,

Try the following code:

import java.util.*;
class  Employee
{
    static Scanner input=new Scanner(System.in);
    public double netSalary(double salary, double taxrate){
    double tax=salary*taxrate;
    double netpay=salary=tax;
    return netpay;
}
public static String grade( ){
    System.out.print("Enter Grade: ");
    String grade=input.next();
    return grade;
}
    public static void main(String[] args){
        Employee emp=new Employee();
        System.out.print("Enter Salary: ");
        double sal=input.nextDouble();
        System.out.print("Enter Tax in %: ");
        double taxrate=input.nextDouble()/100;
        System.out.println("Net Salary is: "+net);
        String g=emp.grade();
        double net=emp.netSalary(sal,taxrate);
        System.out.println("Grade is: "+g);
    }
}

Thanks