Count Number of Words and Digits in a Sentence in C++

I wrote this program to ask the user to give a sentence and then the program will count the number of words and digits in the sentence and display the results on the screen using a C++ programming language.

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Program Listing

sentence.cpp

// Word and Number Counter 1.0 in C++

// Author : Mr. Jake Rodriguez Pomperada, MAED - Instructional Technology

// Date   : October 3, 2009 Saturday

// Email  : jakerpomperada@yahoo.com

#include <iostream>

#include <string>

#include <cctype>

using namespace std;

// Function to count the words in the sentence

 int WordCount(string sentence)

{

    int length = sentence.length();

    int words = 1;

    for (int size = 0; length > size; size++)

    {

       if (sentence[size] == ' ' && sentence[size-1] != ' ')

         words++;      // Count the words if there is a space

    }

    if ( sentence[0] == ' '/*space*/ )

      words--;

    return words ;

}

// Function to count digits in the sentence

 int NumCount(string sentence)

{

   int digits=0,count=0;

  char c;

while ( sentence[count] != '\0' && sentence[count] != '\n' ) {

  c = toupper( sentence[count] );

    if(c>='0'&& c<='9') {

digits++;

    }

count++;

}

 return digits;

}

main()

 {

     char string2[500];

     cout << "\n\n\t\t  WORD AND NUMBER COUNTER 1.0 in C++ ";

     cout << "\n\n\t  Created By: Mr. Jake Rodriguez Pomperada, MAED-IT";

     cout << "\n\n\n";

     cout << "Enter a sentence :=> ";

     cin.getline(string2,500);

     cout << "\n\n\n";

     cout << "\n\t === GENERATED REPORT === ";

     cout << "\n\nThe number of word(s) in the sentence is "

          << WordCount(string2) << ".";

     cout << "\n\nThe number of digits(s) in the sentence is "

          << NumCount(string2) << ".";

     cout << "\n\n";

   system("PAUSE");

 } // End of Code