A variable is a symbolic name or identifier associated with a value or data. Variables allow you to store and manipulate data within a program.The value stored in a variable can be changed during the execution of the program.
Concatenation refers to the process of combining two or more strings or sequences into a single string or sequence. In Python,
- Operator '+' or ',' is used for concatenating string variables
- Only ',' can be used for concatenating integer or constant variables.