Question

is _CHK a valid identifier in java​

Answer 1

Answer:

Yes

Explanation:

In Java, all identifiers must begin with a letter, an underscore, or a Unicode currency character. Any other symbol, such as a number, is not valid. ... In Java an identifier is anything used for the name of a declared entity. So an identifier includes all package, class, method, parameter, and variable names

Answer 2

Answer:

your answer is yes

hope it helps you