lec2.4.1

public class Employee {
    private String firstName;
    private String lastName;
    private double monthlySalary;

    public Employee ( String first , String last , double monthly)
    {
        firstName = first;
        lastName = last;
        if ( monthly > 0.0 )
            monthlySalary = monthly;
    }

    public void setFirstName( String first)
    {
        firstName = first;
    }
    public String getFirstName()
    {
        return firstName;
    }

    public void setLastName(String last)
    {
        lastName = last;
    }
    public String getLastName()
    {
        return lastName;
    }

    public void setMonthlySalary(double monthly)
    {
        monthlySalary = monthly;
    }
    public double getMonthlySalary()
    {
        return monthlySalary;
    }

    public double getLaterSalary()
    {
        return getMonthlySalary() + (((double) 10/ (double)100 ) * getMonthlySalary());
    }

}