Use basic Java language. Thx

4, [after 5.5-moderate] Variable Name Checker: Write a program that checks the properness of a given variable name. More specifically, your program should specify whether a user-entered variable name is (1) illegal, (2) legal, but uses poor style, or (3) good. There are different opinions as to what constitutes good style for a variable name. For this program, check for good style using these rules: Only use letters and digits Use a lowercase letter for the first character. You don't need to check for an uppercase letter for the first letter in the second word, third word, etc. Sample session: . This program checks the properness of a proposed Java variable name. Enter a variable name (q to quit): streetAddress2 Good! Enter a variable name (q to quit): street address2 Illegal. Enter a variable name (g to quit): StreetAddress2 Legal, but uses poor style. Enter a variable name (g to quit): 2ndstreetAddress Illegal. Enter a variable name (q to quit): street$address$2 Legal, but uses poor style