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C++ Language > Learn C++ Language > How do I use the if statement in C++?
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How do I use the if statement in C++?

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Use if to specify a block of code to be executed, if a specified condition is true. Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false
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Experienced Computer trainer having worked in IT sector for 20 years.

An if-else statement controls conditional branching. Statements in the if-branch are executed only if the condition evaluates to a nonzero value (or true). If the value of condition is nonzero, the following statement gets executed, and the statement following the optional else gets skipped. Otherwise,...
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An if-else statement controls conditional branching. Statements in the if-branch are executed only if the condition evaluates to a nonzero value (or true). If the value of condition is nonzero, the following statement gets executed, and the statement following the optional else gets skipped. Otherwise, the following statement gets skipped, and if there's an else then the statement following the else gets executed. Ex: int x = 10; if (x < 11) { cout << "x < 11 is true!\n"; // executed } else { cout << "x < 11 is false!\n"; // not executed } read less
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