Introduction to Object-Oriented Programming

What is the correct extension for a C program file?

• .cpp

• .java

• .c

• .cs

Which of the following is the correct syntax for the main function in C?

• public static void main()

• int main()

• void main(String[] args)

• function main()

Which symbol is used to terminate statements in C?

• :

• .

• ;

• ,

How do you declare an integer variable named "age" in C?

• var age;

• integer age;

• age = integer;

• int age;

Which function is used to display output in C?

• System.out.println()

• Console.WriteLine()

• printf()

• cout<<

What does the following code do? scanf("%d", &num);

• Prints the value of num to the screen

• Reads an integer input from the user and stores it in the variable num

• Converts num to a decimal number

• Declares num as an integer variable

What is the correct way to write a comment in C?

• /+ This is a comment

• # This is a comment

• // This is a comment

• /* This is a comment */

Which operator is used for equality comparison in C?

• =

• ==

• ===

• equals()

What is the purpose of the #include directive in C?

• To create a new variable

• To include external libraries or header files

• To import classes from other programs

• To include comments in the program

Which of the following is NOT a valid data type in C?

• float — Used for decimal numbers with single precision

• string — Is this actually a basic data type in C?

• char — Used for single characters

• double — Used for decimal numbers with double precision