Help on my hash table

[ToddT]

I have this simple hash table but I am getting an access error, the code is


// Include Directives
// ------------------

#include <cmath>
#include <iostream>
#include <string>
#include <fstream>

using namespace std;

const int MAX_KEYS=1000;
const string EMPTY_NODE=&quot;***Available***&quot;;
string HashTable[MAX_KEYS];

unsigned int calcHashValue( string S){
const unsigned int TOP5_MASK = 0xF8000000;
const int LEFT_SHIFT = 5;
const int RIGHT_SHIFT = 11;
unsigned int ReturnVal = 0;
unsigned int Carry = 0x0;
int StringLength = S.length();

for(int i=0; i < StringLength;i++){
Carry = (ReturnVal & TOP5_MASK);
Carry = Carry >> RIGHT_SHIFT;
ReturnVal <<= LEFT_SHIFT;
ReturnVal ^= Carry;
ReturnVal ^= S.c_str();
}
return(ReturnVal % MAX_KEYS );
}

int main(void){
ifstream InputFile;
string TempString = &quot;&quot;;
unsigned int HashValue = 0;
char UserResponse;
string Input = &quot;sample.txt&quot;;
InputFile.open(Input.c_str());


for(int j;j<MAX_KEYS;j++){
HashTable[j] = EMPTY_NODE;
}
while( InputFile ){
InputFile >> TempString;
HashValue = calcHashValue( TempString );
if( HashTable[HashValue] == EMPTY_NODE ){
HashTable[HashValue] = TempString;
}
else if( TempString != HashTable[HashValue] ){
cout << endl << TempString
<< &quot; collides with &quot;
<< HashTable[HashValue]
<< &quot; at HashTable[&quot; << HashValue << &quot;]&quot;;
cin >> UserResponse;

}
}
cout << &quot;help&quot; << endl;
InputFile.close();
return(0);
}
Will appreciate any help

 

[ToddT]

Thanks to any would be helpers, but I figured it out. I had an array domain error from failing to initialize a counter.