C++ Programming Quiz

Which header file is required to use cin and cout?

What will the following code output? cout << 4 + 5;

• 9

• 45

• 4 + 5

• Error

Which operator is used for division in C++?

• /

• \

• //

• div

What is the output of cout << "Hello" << " " << "World!";?

• Hello World!

• HelloWorld!

• Error

• Hello World!

Which command is used to read a string input from the user?

• cin << stringVariable;

• cin >> stringVariable;

• read stringVariable;

• input(stringVariable);

What will be the output of the following code? int a = 10; cout << a--;

• 10

• 9

• Error

• 0

What does the modulus operator (%) do?

• Adds two numbers

• Subtracts two numbers

• Returns the remainder of a division

• Multiplies two numbers

Which of the following is the correct way to declare a float variable?

• float f = 1;

• float f = "1.0";

• float f;

• A and C

What is the output of cout << 5 * 2 + 3;?

• 10

• 13

• 8

• 15

Which of the following statements correctly formats output to two decimal places?

• cout << setprecision(2);

• cout << fixed << setprecision(2);

• cout << decimal(2);

• cout << format(2);