Used Arduino Code Question

Hi Guys!

Can I Use The Previously Used Arduino Code??

Plz Help Somebody?

Arduino UNO R3
Arduino IDE

THANKS

Not clear what you mean. Are you trying to read a previously programmed Uno back into the IDE to get the source? No.

What is meant by 'previously used'? Please clarify.

"super" programmers always start with existing code that they modify for their purpose rather than write from scratch