VISUAL BASIC

Detailed explanation-1: -A variable is a data item whose value can change during the program’s execution. Thus, as its name implies – the value can vary.

Detailed explanation-2: -A variable’s value can undoubtedly change while the application is executing. Because its value fluctuates, it is considered a variable rather than a constant. While a programme is running, the name cannot be changed. Alternatively, it is dependent on the programming language.

Detailed explanation-3: -The value of a variable can definitely change while the program is running. This is why it’s called a variable and not a constant, you know, because it’s value varies.

Detailed explanation-4: -During execution/computation of programming, the value of a constant cannot be altered, it remains constant. PI = 3.1415927 whose value is universal and does not change.