Java.Variable name length

Question

in documentation i read, that:

A variables name can be any legal identifier — an **unlimited-length** sequence of Unicode letters and digits

so

Answer 1

The compiler has probably changed your really long name to something boring like "a".

The variable name is there for the programmer's convenience. To the compiler and JVM it makes no difference if it's 1 character or 1 million as long as it's unique.