Question

Which of the following are valid variable names?

i.    Data_rec   
ii.    My.file   
iii.    elif
iv.    Elif   
v.    X_abc@1   
vi.    29CLCT
vii. Data-rec   
viii.    Break   
ix.    _CHK​

Answer 1

Answer:

i. valid

ii. .(dot) is invalid

iii. valid

iv. valid

v. @ is invalid

vi. It can't begin with digit- invalid

vii. -(hyphen) is invalid

viii. valid

ix. valid

Thank you

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