Programming with C++

What is the correct syntax for a C++ single-line comment?

• // This is a comment
• # This is a comment
• /*/ This is a comment */
• -- This is a comment

Which of the following is a C++ keyword?

• main
• function
• output
• loop

How is text output to the console in C++?

• printthis("Hello");
• output("Hello");
• cout << "Hello";
• display("Hello");

What is the purpose of comments in C++?

• To execute specific code
• To make the code readable for humans
• To hide code from the compiler
• To create syntax errors

Which C++ function is used for user input?

• print()
• getthis()
• input()
• cin>>

What is the correct way to declare a variable in C++?

• variable x;
• int x;
• x = int;
• declare x as integer;

Which keyword is used to declare an integer variable in C++?

• char
• float
• int
• integer

Which keyword is used to declare a floating-point variable in C++?

• float
• decimal
• floating
• double

What is the difference between float and double in C++?

• float is used for integers, and double is used for decimals.
• double has higher precision than float.
• float is for single-precision, and double is for double-precision.
• There is no difference; they are interchangeable.

Which operator is used for exponentiation in C++?

• ^
• **
• ^*
• pow()