KwickClips Cyber Safety and Ethics · 41 sec · free
What does std:: mean?
Short answer. The name comes from the std namespace.
What does cin » do?
Reads from the keyboard.
Remember
| cout << prints to screen |
| cin >> reads from keyboard |
| using namespace std; drops std:: |
Why do some programs write S T D before see out? See out lives in the S T D namespace. With no using line, write the prefix. It prints Runs forty eight. See out prints. See in reads. The using line lets you drop the prefix.
This clip is from the full lesson: Introduction to C++: Structure of a Program, cin and cout — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: NIOS Senior Secondary Computer Science (330), Programming All levels C++, Programming All levels C++
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