Write the function int countWords(string str) that returns a count of all words
ID: 3556340 • Letter: W
Question
Write the function int countWords(string str) that returns a count of all words in the string str. Words
are separated by one or more spaces. Strings should be requested from the user via a loop construct for
acquiring test data.
Example run (with user input indicated with bold italics):
Enter a string or Q to quit: The quick brown fox jumped over the lazy dog.
Word count: 9
Enter a string or Q to quit: aeiou AEIOU
Word count: 2
Enter a string or Q to quit: zxcvbnm
Word count: 1
Enter a string or Q to quit: Q
Explanation / Answer
#include <iostream>
#include <string>
#include <sstream>
int main()
{
std::string thatString;
std::cout << "Please enter a word, a sentence, or a string of numbers: ";
getline(std::cin, thatString);
// remember that cin >> s; reads one WORD at a time?
int words=0;
std::istringstream is(thatString);
while(is >> thatString)
++words;
// done!
std::cout << "There are(is) " << words << " word(s) in the phrase you entered.";
}
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