input output in C++

Topic 4| User input/output, Comments



Input Output and Comments in C++

User input in C++
Output in C++
New line in C++
Comments in C++
Coding examples




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, Topic 4| User input/output, Comments

User input in C++:
Any information or data sent to a computer for processing is considered input.
Cin is a predefined variable that is used to read the input from the user.

For example:
cin >> name;

cin >> age >> roll num;

 >> is used with cin.


Output in C++:
Any information that is processed by and sent out from a computer or other electronic device is
considered output. Cout is a predefined variable that is used to output values/print text.

For example:
Cout<< name;

Cout<< "My name is " << name;

 << is used with cout.


New line in C++:
When we want to print different outputs in separate lines, we use "\n".

For example:
cout << "Hello!\n ";
cout << "My name is Waleed";

Another way to insert a new line, is by using endl .

For example:
cout << "Hello!" << endl;
cout << "My name is Waleed";

C++ statement must end with a semicolon (;).




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