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Rules for variable names:

An alphabet letter or an underscore, or a dollar sign must be use as a starting letter or a sign. The best practice is to use an alphabet letter to start a variable name.

After the starting letter, variable names may contain any letters or numbers from 0 to 9. Special characters and spaces are not allowed.

Variable name can have any size or length, but it must not be too much lengthy as a developer or coders needs to remember and it must be used in various places within the code.

In variable names, uppercase characters and lower-case characters are different from each other. All uppercase characters in a variable exhibit constant variable. Variable names are case-sensitive.

Reserved keywords cannot be used as variable names. CITATION Nam19 \l 1033 (Naming Rules for Variables, 2019)

References

BIBLIOGRAPHY Naming Rules for Variables. (2019). Retrieved from MathBits: https://mathbits.com/MathBits/Java/DataBasics/Namingrules.htm

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