C++ Programming Test

What is the purpose of cin in C++?

• To output text to the console

• To read input from the console

• To declare a variable

• To perform a mathematical operation

Which of the following is the correct syntax for the cout statement in C++?

• Console.out("Hello World");

• System.out.print("Hello World");

• cout << "Hello World";

• print("Hello World");

What is the purpose of an if statement in C++?

• To repeat a block of code a certain number of times

• To exit a loop

• To compare two values and execute code if they are equal

• To check if a condition is true and execute code if it is

What is the purpose of an else statement in C++?

• To execute code if the previous if condition is false

• To execute code if the previous if statement is true

• To compare two values and execute code if they are equal

• To exit a loop

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

• int

• false

• float

• boolean

What is the difference between a while loop and a for loop in C++?

• A for loop is used for repeating a block of code a certain number of times, while a while loop is used for repeating a block of code while a condition is true.

• A while loop is used for repeating a block of code a certain number of times, while a for loop is used for repeating a block of code while a condition is true.

• A for loop is used for reading input from the console, while a while loop is used for outputting text to the console.

• A while loop is used for outputting text to the console, while a for loop is used for reading input from the console.

Which of the following is the correct syntax for declaring a variable of type int in C++?

• integer x = 5;

• x = 5;

• int = x;

• int x;

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

• To declare a variable

• To output text to the console

• To read input from the console

• To include a library in the program

What output is printed to the console after executing the following code in C++?

int x = 5;

int y = 10;

if (x > y) { cout << "x is greater than y"; }

else { cout << "y is greater than x"; }

• "x is greater than y"

• "y is greater than x"

• "x and y are equal"

• The code does not compile due to a syntax error.

Which of the following if statements correctly checks if a variable age is greater than or equal to 18 in C++?

• if age >= 18

• if age => 18

• if (age >= 18)

• if (age => 18)