so, I just started taking java (introduction to programing) this semester and I have this assignment due tomorrow. I have to write a program to calculate the net salary of employees:

Sample run: Please enter basic salary: 1000
Please enter number of overtime hours: 10
Please enter number of absent hours: 3
Please enter rate per overtime/absent hour: 20
Please enter tax rate: 6
Your net salary is: 1099.20

just simple calculations, so far I have written this:

public class netSalary{
public static void main(String args[]){
int basicSalary, taxrate, netsalary, absentHours, overtimeHours, rateOfOvertimeAbsent;
double netSalary;

System.out.println("Enter your basic salary");
basicSalary = SavitchIn.readLineInt();

System.out.println("Please enter number of overtime hours");
overtimeHours = SavitchIn.readLineInt();

System.out.println("Please enter number of absent hours");
absentHours = SavitchIn.readLineInt();

System.out.println("Please enter rate per overtime/absent hour");
rateOfOvertimeAbsent = SavitchIn.readLineInt();

System.out.println("Please enter tax rate");
taxrate = SavitchIn.readLineInt();

netSalary = basicSalary + (overtimeHours*rateOfOvertimeAbsent) - (absentHours*rateOfOvertimeAbsent) - ( basicSalary*taxrate/100);

System.out.print("Your net salary is: " + netSalary);
}
}

but I am getting 5 errors when I run javac:

C:\j2sdk1.4.1\bin>javac netsalary.java
netsalary.java:7: cannot resolve symbol
symbol : variable SavitchIn
location: class netSalary
basicSalary = SavitchIn.readLineInt();
^
netsalary.java:10: cannot resolve symbol
symbol : variable SavitchIn
location: class netSalary
overtimeHours = SavitchIn.readLineInt();
^
netsalary.java:13: cannot resolve symbol
symbol : variable SavitchIn
location: class netSalary
absentHours = SavitchIn.readLineInt();
^
netsalary.java:16: cannot resolve symbol
symbol : variable SavitchIn
location: class netSalary
rateOfOvertimeAbsent = SavitchIn.readLineInt();
^
netsalary.java:19: cannot resolve symbol
symbol : variable SavitchIn
location: class netSalary
taxrate = SavitchIn.readLineInt();
^
5 errors

its something related to SavitchIn, any ideas???
and thanks in advance!