How do I use the increment (++) and decrement (--) operators in C++?

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Smita Santosh

Experienced Computer trainer having worked in IT sector for 20 years.

the increment operator ++ increases the value of a variable by 1. Similarly, the decrement operator -- decreases the value of a variable by 1. However, there is an important difference when these two operators are used as a prefix and a postfix.
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Here's how you use the increment (++) and decrement (--) operators in C++: Increment operator: The increment operator (++) increases the value of a variable by 1. Syntax:variable++ Example:int a = 10;a++; // Now a = 11 Decrement operator: The decrement operator (--) decreases the value of a variable...
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Here's how you use the increment (++) and decrement (--) operators in C++: Increment operator: The increment operator (++) increases the value of a variable by 1. Syntax:variable++ Example:int a = 10;a++; // Now a = 11 Decrement operator: The decrement operator (--) decreases the value of a variable by 1. Syntax:variable-- Example:int a = 10;a--; // Now a = 9 The increment and decrement operators can be used in a variety of ways, such as in for loops, while loops, and conditional statements. They can also be used to modify the values of variables. read less
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