| An expression is composed of one or more operations. The objects of the operations are referred to as operands. An expression in C++ is any valid combination of operators, constants, and variables. |
| Type of expressions |
| Arithmetic Expression |
| Arithmetic expression can either be integer expression or real expression, some times a mixed expression can also be formed with a mixture of real and integer expression. |
| Integer expression- |
| int a=10, b=3, c=4, d=213; . a+b, a*d etc |
| Real expression- |
| float x=1.20, y=23.63, z=23.23; . x+y, x*z etc. |
| Logical expression |
| The expression that result into 0 or 1 are called logical expression. The logical expression are the combination of constants, variable and logical and relational operator. |
| The following are the examples of valid logical expression: |
| . x>y, (-y), (x-y) etc. |
| C++ Escape Sequences |
| Escape sequences are character constants that are usually used to format text. |
| Here are the most common: |
| Common Escape Sequences |
| \a Bell |
| \b Backspace |
| \f Formfeed |
| \n New Line |
| \r Carriage Return |
| \t Horizontal Tab |
| \v Vertical Tab |
| \’ Single quote |
| \” Double quote |
| \\ Backslash |