Question

Do it yourself
Define five correct and five incorrect
variable names.
​

Answer 1

Answer:

correct variable names-

sum, a, b, str, x, y, z.

Incorrect variable names-

12a

St r a

document

while

7y

Explanation:

Rules to declare variables-

1.They must start with an alphabet.

2.It should not contain blank space except underscore(_).

3.Standard keywords like document,while are not allowed.