Question

Difference between variable and constant

Answer 1

A constant, Variable or a keyword can be formed from any combination of Alphabets, Digits and Special Symbols. A constant is an entity whose value does not change throughout the program execution.
A variable is an entity whose value keeps on changing throughout the program execution. However, it’s not a rule that the value of the variable will change. A variable value might remain same throughout the program execution. However the main difference between variable and constant is that we can’t change the value of constant in between the program, but we can change the value of the variable during program execution.