# Integer Constant in C++

**Q3. How many ways are there in C++ to represent an integer constant?**

**Ans. **In C++, an integer constant can be represented in 3 ways:

**As a decimal integer**constant in which the integer constant consists of a sequence of digit but it does not begin with digit 0 (zero). For example, 1234 is a decimal integer constant but 01234 is not a decimal integer constant.**As an octal integer**constant in which the integer constant begins with digit 0 (zero). For example, 9 (in decimal) can be written as 011 (octal equivalent of 9) as octal integer.**As a hexadecimal integer**constant in which the integer begins with*ox*or OX. For instance, 11 (in decimal) can be written as OXB (hexadecimal equivalent of 11).