Question

Which one of the following is used with cout as an operator ?

• A. $ \ll $
• B. $ \gg $
• C. >
• D. & Lt;

Hint:

A simple mnemonic for C++ streams: \(\text{cout <<}\) "points" the data outwards to the console. \(\text{cin >>} \)"points" the data inwards from the keyboard to a variable.

Answer 1

The Correct Option is A

Step 1: Identify \( \texttt{cout} \) in C++.
\( \texttt{cout} \) is the standard output stream object in C++. It is used to print output to the console.

Step 2: Identify the operator used with \( \texttt{cout} \).
The stream insertion operator, \( \texttt{<<} \), is used to “insert” data into the output stream.
For example: \( \texttt{std::cout << "Hello, World!";} \)

Step 3: Analyze the other options:

• (B) \( \texttt{>>} \): Stream extraction operator, used with \( \texttt{cin} \) to get input from the user.
• (C) \( \texttt{>} \): Greater-than comparison operator.
• (D) \( \texttt{<} \): Less-than comparison operator.

Conclusion: \( \texttt{<<} \) is the operator used with \( \texttt{cout} \).