Check out example codes for "variable name in java". It will help you in understanding the concepts better.
Code Example 1
int // int is a variable the stores numbers string // a variable for storing text
Code Example 2
Java variable names are case sensitive. ... Java variable names must start with a letter, or the $ or _ character. After the first character in a Java variable name, the name can also contain numbers (in addition to letters, the $, and the _ character).
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