Please, learn to google!
Don't ask questions in chats/forums like:
Why do we need inheritance?
Why is the sky blue?
What is polymorphism?
These kinds of questions you should google first!
Find the answer on Google (opens in a new tab)
To google means:
- Open Google (opens in a new tab) (or another search engine)
- Enter your request.
- I see, but what's wrong with asking these questions in chats/forums?
- Believe me, someone asked 99% of your questions in a forum a long time ago. This means that the answer is on the Internet. Therefore, by asking Google (or another search engine), you will not only get a quick response, but also avoid disturbing other people.
- So, is asking questions in chats/forums prohibited/unethical/bad?
Not really. If you have a question, first Google it, then if you can't find the answer, you can search it in Yandex (opens in a new tab) ask your question in a forum.
The essence in one picture:
