1   // Fig. 2.13: fig02_13.cpp
 2   // Comparing integers using if statements, relational operators
 3   // and equality operators.
 4   #include <iostream> // allows program to perform input and output
 5
 6   using std::cout; // program uses cout
 7   using std::cin; // program uses cin  
 8   using std::endl; // program uses endl
 9
10   // function main begins program execution
11   int main()
12   {
13      int number1 = 0; // first integer to compare (initialized to 0)
14      int number2 = 0; // second integer to compare (initialized to 0)
15
16      cout << "Enter two integers to compare: "; // prompt user for data
17      cin >> number1 >> number2; // read two integers from user
18
19      if ( number1 == number2 )                       
20         cout << number1 << " == " << number2 << endl;
21
22      if ( number1 != number2 )
23         cout << number1 << " != " << number2 << endl;
24
25      if ( number1 < number2 )
26         cout << number1 << " < " << number2 << endl;
27
28      if ( number1 > number2 )
29         cout << number1 << " > " << number2 << endl;
30
31      if ( number1 <= number2 )
32         cout << number1 << " <= " << number2 << endl;
33
34      if ( number1 >= number2 )
35         cout << number1 << " >= " << number2 << endl;
36   } // end function main