Hands-on Quiz

1.Can you complete the below C# program to find the factorial of a given number?

using System;

class Factorial {

    static void Main() {

int num = 5;

       int factorial = 1;

 

 

       Console.WriteLine("Factorial of {0} is {1}", num, factorial);

    }

}

 

• for (int i = 1; i <= num; i++) { factorial *= i; }
• for (int i = 1; i <= num; i++) { i = factorial * i; }

• factorial = factorial * i;

• for (int i = 1; i <= num; i++) { factorial = i * num; }

2. What will be the result of the following code?

int x = 5;

int y = 3;

Console.WriteLine(x + y);

• A) 8

• B) 15

• C) 53

• D) None of the above

3. How would you make this program more fun by printing "Hello, [Your Name]!" instead of "Hello, world!"?

using System;

class HelloWorld {

static void Main() {

Console.WriteLine("Hello, world!");

}

}

• A) Replace "world" with your name in the WriteLine statement

• B) Add a new line with Console.WriteLine ("Hello, [Your Name]!");

• C) Modify the Main method to accept a string argument for the name and print it

• D) None of the above

4.Can you complete the following C# program to determine if a given number is even or odd?

using System;

class EvenOdd {

    static void Main() {

int num = 6;

{

            Console.WriteLine("{0} is even", num);

        }

 else

       {

             Console.WriteLine("{0} is odd", num);

        }

    }

}

• if (num % 2 == 0)
• if (num % 10 == 0)

• num % 2 == 0

• if (num % 2 != 0)

5.What will be the value of x after the following code is executed?

int x = 5;

x ++;

• A) 5
• B) 6
• C) 8
• D) None of the above

6.Complete the below C# program to Generate Fibonacci Series.

using System;

class Fibonacci {

static void Main() {

int n = 10;

int first = 0, second = 1;

Console.WriteLine("Fibonacci Series:");

for (int i = 0; i < n; i++) {

Console.Write(first + " ");

​ ​ ​ ​

second = temp; ​​

​ }​

}

}

​ ​

• int temp = first + second;
• first = second;
• int temp = first
• first = temp + second;