Question

What is variable? State rules for defining variable name.

Answer 1

A variable is a container which holds the value while the java program is executed. A variable is assigned with a datatype. Variable is a name of memory location. There are three types of variables in java: local, instance and static.

Answer 2

Any alphabetical words with any numerical no like that

$5x + 45y$

$xandy \: also$

This also use to find any age question and algebraic expressions and linear equation