Exercise 3

Nested While Loops Exercise

Create a C++ program ex3_linect.cpp with the following code in the Visual Studio project or copy the following code into your IDE:

// Program LineCt counts the number of characters per line
// and the number of lines in a file.
// Assumption:  There is a '\n' before the EOF. Exercise extension fixes this.

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    int lineNo;
    char character;
    int number;
    ifstream inData;

inData.open("LineData.txt");
    lineNo = 0;
    inData.get(character);

// Add code: write a "while" statement that will loop until the end of file

{
        lineNo++;
        number = 0;

// Add code: write a "while" statement that will loop until end of line
        //      character is reached.
        // Extension: this loop should also stop if the end of file is reached

{
            // Add code: increment "number" to count this character

// Add code: use the .get() function to read the next character

}

cout << "Line " << lineNo  << " contains "
             << number  << " characters."  << endl;
        inData.get(character); // get the next character, clear out the '\n'
    }

return 0;
}

This program will use a pair of nested while loops to count how many characters appear on each line of a file. The outer loop will count the lines of the file, the inner loop will count the characters on the current line.

Instructions:

Complete ex3_linect.cpp according to the "Add code: " comments in the program.
This program uses file I/O so you need an input file. To create one, make a copy of the source file.
Compile and run this C++ program.

When you are done:

Take a screenshot of your IDE and console window after compiling and running the program.
For this exercise, you will have: ex3_linect.cpp and an input file called LineData.txt.

Colour Theme	Font Size Options