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The if statement can be used to test conditions so that we can alter the flow of a program. In other words: if a specific statement is true, execute some instructions. If not true, execute these instructions.

In the following example the user can input a number. The number is stored in the variable A. Now take a look at the "??if statement?": if the number stored in the variable A is equal to ten, then "??is equal" is printed on the screen. Simple, isn'??t it. If the number is not equal to ten, then nothing is printed.

Take a look at the example:

#include<iostream>

using namespace std;

int main()

{

int A;

cin >> A;

if ( A == 10 )

cout << "is equal" << '\n';

return 0;

}