Are variables used a lot?

Question

Are they useful?

Answer 1

● variable is a piece of memory that can contain a data value.
● for different type of values, we use different data type(like String, int , double etc)
● there are many other classifications of variables & have so have different uses.
//U can think like for running a loop restricted by certain condition & we do increment or decrement in some variable [that change in value is possible because it was variable(ie, its value can vary)]

Answer 2

Yes, variables are used a lot. They are very useful. No one can think of creating codes without them.