C++ Pre-Test

What is a correct syntax to output "Hello World" in C++?

• System.out.println("Hello World");

• print ("Hello World");

• cout << "Hello World";

• Console.WriteLine("Hello World");

What is C++?

• a) C++ is an object oriented programming language
  

• b) C++ is a procedural programming language
  

• c) C++ supports both procedural and object oriented programming language
  

• d) C++ is a functional programming language

Which of the following is used for comments in C++?

• a) /* comment /
  

• b) // comment /
  

• c) // comment
  

• d) both // comment or /* comment */

Which of the following is a correct identifier in C++?

• a) VAR_1234
  

• b) $var_name
  

• c) 7VARNAME
  

• d) 7var_name

How do you create a variable with the numeric value 5?

• x = 5;

• double x = 5;

• num x = 5

• int x = 5;

What happens if the following program is executed in C and C++?

#include <stdio.h> int main(void) { int new = 5; printf("%d", new); }

• a) Error in C and successful execution in C++
  

• b) Error in both C and C++
  

• c) Error in C++ and successful execution in C
  

• d) A successful run in both C and C++

Which of the following type is provided by C++ but not C?

• a) double
  

• b) float
  

• c) int
  

• d) bool

How do you create a variable with the floating number 2.8?

• double x = 2.8;

• int x = 2.8;

• byte x = 2.8

• x = 2.8;

Which of the following correctly declares an array in C++?

• a) array{10};
  

• b) array array[10];
  

• c) int array;
  

• d) int array[10];

Which method can be used to find the length of a string?

• length()

• len()

• getLength()

• getSize()