Bar graph program behaving strangely - c++

Question

I have to make a program for a class that displays one star for every three degrees for each temperature read from an input file. I think I did ok, the code compiles. However, when I actually run it, I have a few problems:
1) when I run it without pressing ctrl+f5 in codelite it exits immediately, even though I have 'return 0;' at the end.
2) the console only shows stars for maybe half of the numbers, the rest are blank.
3) the numbers aren't lining up although I have set them all to the same width in my loop.
Here's what I see when I use ctrl+f5: http://imgur.com/w6jqPp5
Here's my code:
#include <fstream>
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
int main() {
//declare variables for input/loops
string graphLine = " | ";
int tempCount = 0;
int tempStars;
int tempValue;
int printedStars;
//Title
cout << "Welcome to the Hourly Temperature Bar-Graph Maker 1.0!" << endl;
//read input file, name it "tempData"
ifstream tempData;
tempData.open("temperatures.txt");
//display error if the input file read failed
if(!tempData) {
cout << "ERROR: The input file could not be read." << endl;
return 0;
}
cout << "Temperatures for 24 hours(each asterisk represents 3 degrees): " << endl;
//print the temperature range(horizontal label for graph)
cout << "-30 0 30 60 90 120" << endl;
//read a temperature, output the bar for each temperature
while (tempCount < 24) {
//read in temperature value
tempData >> tempValue;
//distinguish between negative and positive temperatures
if(tempValue >= 0) {
tempStars = tempValue/3;
cout << tempValue << setw(5) << graphLine;
//print the appropriate number of asterisks for the temperature
while (printedStars < tempStars) {
cout << '*';
printedStars++;
}
cout << endl;
}
//print the stars before the line
else {
tempStars = tempValue/3;
while (printedStars < tempStars) {
cout << '*';
printedStars++;
}
cout << tempValue << setw(5) << graphLine << endl;
}
tempCount++;
}
tempData.close();
return 0;
}

Answer 1

The program is just finishing normally - put a call to cin.getline or some other input call if you want it to wait. Alternatively run it through the debugger and put a breakpoint on the return 0 line.
You don't initialize or reset printedStars before you use it. Put printedStars = 0; before your star printing loops.
Move the setw(5) bit in the cout calls to before the value, so the value is output with a width of 5.