Uninitialized local variable used? - c++

Question

having some problems with a class exercise
#include <iostream>
#include <string>
using namespace std;
int main()
{
int employeeNumber, grossPay, stateTax, federalTax, ficaHold;
int totalGross, totalState, totalFederal, totalFica, totalPay = 0;
do // do-while loop for employee number
{
cout << "Enter the employee number: " << endl;
cout << "(Enter 0 to quit.)" << endl;
cin >> employeeNumber;
} while (employeeNumber < 0);
while (employeeNumber != 0)
{
do // gross pay greater than state tax + federal tax + FICA
{
do // entry and validation for gross pay
{
cout << "How much gross pay ? ";
cin >> grossPay;
} while (grossPay < 0);
do //entry and validation for state tax
{
cout << "How much state tax ? ";
cin >> stateTax;
} while (stateTax < 0 || stateTax > grossPay);
do // entry and validation federal tax
{
cout << "How much federal tax ? ";
cin >> federalTax;
} while (federalTax < 0 || federalTax > grossPay);
do // entry and validation for FICA holdings amount
{
cout << "How much FICA withholdings ? ";
cin >> ficaHold;
} while (ficaHold < 0 || ficaHold > grossPay);
if (grossPay < stateTax + federalTax + ficaHold) // Message to verify taxes are not greater than pay
cout << "State tax, federal tax, and FICA holdings cannot be greater than gross pay. Please re-enter these values." << endl;
} while (grossPay < stateTax + federalTax + ficaHold);
totalGross += grossPay;
totalState += stateTax;
totalFederal += federalTax;
totalFica += ficaHold;
totalPay = totalGross - (totalState + totalFederal + totalFica);
do // do-while loop for employee number
{
cout << "Enter the employee number: " << endl;
cout << "(Enter 0 to quit.)" << endl;
cin >> employeeNumber;
} while (employeeNumber < 0);
}
cout << endl << endl << "The total gross pay is: $" << totalGross << endl;
cout << "The total state tax is :" << totalState << endl;
cout << "The total federal tax :" << totalFederal << endl;
cout << "The total FICA withholdings :" << totalFica << endl;
cout << "Net pay :" << totalPay << endl << endl;
return 0;
}
getting some errors for the variables on lines 95-98, eg "uninitialized local variable 'totalState'" and not really sure what to do, i already gave those variables value in the declaration before any loops, and im not sure if i can move them before anything while keeping the goal of the program

Answer 1

The first time you use totalState, you're both reading and writing: totalState += stateTax;. The problem is that you've never initialized totalState, so there's no guarantee what the value will be when you try to read it.
For the record, you have other uninitialized variables as well: totalGross, totalFederal, and totalFica.