1.is R1 a valid variable name? why/why not?2.is break a valid variable

1.	1.is R1 a valid variable name? why/why not?2.is break a valid variable name?why/why not?(both in C++)
Answer» ANSWER: R1 yes break no Explanation: R1 start from alphabet and a mixture of NUMBERS and alphabets, so a VALID valid variable NAME . break is a RESERVED keyword

1.is R1 a valid variable name? why/why not?2.is break a valid variable name?why/why not?(both in C++)

Answer»

R1 yes

break no

Explanation:

R1 start from alphabet and a mixture of NUMBERS and alphabets, so a VALID valid variable NAME .

break is a RESERVED keyword