ch3-Guess (while, do-while statements)

Chapter_3     Exercise_3-1     Ifthen

Charlist     Exercise_3-2

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CONTENTS:     Guess1.cpp     Guess2.cpp

Guess1.cpp         download

#include <iostream>
using std::cout;
using std::cin;
using std::endl;

int main()
{
int secret = 15;
int guess = 0; // initial value needed for the first test within while()
// "!=" is the "not-equal" conditional:
while(guess != secret) // Compound statement, no semicolon here
{
cout << "Guess the number: ";
cin >> guess; // type a number and press Enter, which goes to next line
}
cout << "You guessed it!" << endl; // newline added here

return 0;
}

/*
g++ Guess1.cpp -o Guess1
./Guess1
Guess the number: 0
Guess the number: 12
Guess the number: 15
You guessed it!
*/

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Guess2.cpp         download

#include <iostream>
using std::cout;
using std::cin;
using std::endl;

int main()
{
int secret = 15;
int guess; // No initialization needed here

do
{
cout << "Guess the number: ";
cin >> guess; // Initialization happens here (no newline, press Enter)
// the code is easier to read with this empty line here
} while (guess != secret); // semicolon required here

cout << "You guessed it!" << endl; // newline added here

return 0;
}

/*
g++ Guess2.cpp -o Guess2
./Guess2
Guess the number: 0
Guess the number: 12
Guess the number: 15
You guessed it!
*/

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Chapter_3     Exercise_3-1     Ifthen

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