Test Your C++ Knowledge Think you know C++ well? Take this quiz to test your knowledge on C++ programming language. alina90 published on June 28 Stacked 1/10 What does the '++' operator do in C++? Increment a variable by 1 Decrement a variable by 1 Multiply a variable by 2 Assign a value to a variable 2/10 Which keyword is used to define a class in C++? class struct define new 3/10 What is the correct way to declare a pointer in C++? int *ptr; ptr int; int ptr; ptr *int; 4/10 Which of the following is not a fundamental data type in C++? String int float char 5/10 How do you include the 'iostream' library in a C++ program? #include <iostream> #include "iostream" #include <iostream.h> #import <iostream> 6/10 Which operator is used for logical AND in C++? && & || ~ 7/10 What is the output of '5 + 8 * 3' in C++? 29 39 23 56 8/10 Which of the following is a valid C++ identifier? _myVar 123var my var var.my 9/10 What does 'cin' do in C++? Reads input from the standard input stream Prints output to the console Flushes the output stream Opens a file for reading 10/10 How do you comment a single line in C++? // This is a comment <!-- This is a comment --> /* This is a comment */ # This is a comment