Didn't get anything... Help to understand plz..

Question

I am completing the levels... Going to next levels... And answering to each questions... But i can't realise what is saying in the example of each level... I mean... What is saying in those codes... some terms are confusing me... Help me plz... If u can.. Sorry for my bad English...

Answer 1

I need to realise that what does each term mean.I am a higher secondary computer commerce student...it is necessary to study.. Thank u for ur help...