C++ Basics

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

• // This is a single-line comment

• /* This is a single-line comment */

• /* This is a single-line comment

• // This is a multi-line comment

What is the main function in C++?

• The main function is the starting point of the program.

• The main function is the main function.

• The main function is used for declaring variables.

• The main function is responsible for printing output.

What is the difference between 'int' and 'double' data types in C++?

• int stores floating-point numbers, double stores integer values.

• int stores double precision numbers, double stores integer values.

• int stores integer values, double stores floating-point numbers with double precision.

• int stores floating-point numbers with double precision, double stores integer values.

How do you declare a variable in C++?

• int num;

• float value;

• string name;

• bool flag;

What is the 'cout' statement used for in C++?

• It is used to perform mathematical calculations in C++.

• It is used to output data to the standard output stream.

• It is used to input data from the standard input stream.

• It is used to declare variables in C++.

What is the 'cin' statement used for in C++?

• To write output to the standard output stream

• To read input from the standard input stream

• To perform mathematical operations

• To declare a variable

What is the 'if' statement used for in C++?

• Conditional execution

• Used for printing output

• For loop execution

• Data type declaration

What is the 'for' loop used for in C++?

• It is used for defining functions in C++.

• It is used for iterating over a block of code multiple times based on a condition.

• It is used for declaring variables in C++.

• It is used for handling exceptions in C++.

What is the 'while' loop used for in C++?

• Repeats a block of code while a specified condition is true.

• Skips a block of code if a condition is true

• Loops through a block of code a specified number of times

• Executes a block of code only once

How do you include a library in C++?

• #include

• #import

• import library_name

• #include