demonstrate the use of prefix and postfix mode of compound assignment operator

Answer 1

Gideon Adeyemo ,

this sounds like a homework. can you be a bit more specific? and what exactly is your question? and what does 'comments' in the tag mean?

have you already used google?

Answer 2

Don't expect people to put effort into helping you if you're not even willing to put any effort into asking your question.
https://www.sololearn.com/Content-Creation-Guidelines?

https://code.sololearn.com/Wv5gTHy1N6Ji/?ref=app
https://www.sololearn.com/discuss/1316935/?ref=app
https://code.sololearn.com/W3uiji9X28C1/?ref=app
https://www.sololearn.com/discuss/333866/?ref=app