C#: trying a simple project

Question

I am new to C#. I wanted to do a simple program with some type of loops. I wanted my program to loop through the numbers that the user enters and if it is less than a number then write keep guessing,but once they enter the number 25 i wanted it to say Merry Christmas.. Please Help

int number;

do
{
    Console.WriteLine("Guess a number between 20 through 25");
    number = int.Parse(Console.ReadLine());
}  while (number < 25);

C# Beginner

Answer 1

Try the following:

int number = 0;
while (number != 25)
{
    Console.WriteLine("Guess a number between 20 through 25");
    number = int.Parse(Console.ReadLine());
    if (number != 25)
        Console.WriteLine("Keep guessing");
    else
        Console.WriteLine("Merry Christmas");
}

Answer 2

I'm not sure what your question is, but I've got a couple of comments:

1. An exception will be thrown if the user enters something that can't be parsed as an int. Fix this by using TryParse.

2. As written, the loop will exit if the user enters a number greater than 25, such as 26.

Modified code:

int number;
do
{
    Console.WriteLine("Guess a number between 20 through 25");
    int.TryParse(Console.ReadLine(), out number);
} while (number != 25);