Skip to main content

WHILE and IF statements

A while loop statement will repeatedly execute a statement as long as the given condition is true. If the while loop's condition is set to true then the program will go into the loop, and will keep looping as long as that condition remains true. For example:
int score = 15;
while (score  <  20)
      {
            Console.WriteLine("value of score: {0}"), score;
             score++;
       }
       Console.ReadLine();
In this example the program will go into the loop for as long as the value of score is less than 20. Once it's in the loop it will increment the value of score by one, then it will check if a is still less than 20. Once the value of score reaches 20, it will no longer go into the loop as the condition will no longer be true.
A IF statement on the other hand can be a bit similar to a while statement, as it will check the condition at first, and if it's true it will execute the block of code inside of it. IF the condition is true it will run the code but it will only do it once as compared to a while statement. One can also use an ELSE statement to run a different set of  code if the condition is false. Example:


C# if...else statement
Both WHILE and IF statements can be used together in programming, as for example one can have a while statement running for as long as the value of quit is set to false. Inside of the while loop you can use an IF statement to check if the user wants to quit the program. For example:
bool quit = false;
string userResponse;
while (quit == false)
    {
           Console.WriteLine("enter Q to quit")
           userResponse = Console.ReadLine();
           If (userResponse == "Q")
                    {
                          Console.WriteLine("Until next time!");
                           Goodbye();
                     }
     }
Sources:
http://www.tutorialspoint.com/csharp/csharp_while_loop.htm
https://msdn.microsoft.com/en-us/library/5011f09h.aspx
http://www.tutorialspoint.com/csharp/if_else_statement_in_csharp.htm

Labels:

Comments

Post a Comment

Popular posts from this blog

The importance of sharing data between functions/methods, and their scope.

It is important that functions/methods share data between a class because in programming you will be having a lot of methods that will need to share data to function correctly. For example, if you had to calculate different types of data with equations, you would have the calculations being done in one method then transfer only the calculated data to a display method. If data isn't shared between these two classes then only the calculation method will have the data, and no other methods can access it, making it difficult to use that data to perform more tasks. The scope refers to the portion of the program a variable is visible, as well as where it can only be used. It is referred to where a variable can be read from and/or written to, in other words where the variable lives. Visibility compared to scope is where the variables can be used and shared. We can set where a variable can be accessed with three different options, public, private and protected. This is important becau...
Post a Comment
Read more

MATC Event Planner Project

In my IT Project management class I had to work with team mates to create a project that we could essentially propose in the real world. The project we created was an event planner that MATC organizations could use to create events, since there is no streamlined system in place today. During this process I learned the different methodologies that people can use to create and successfully develop a project. The time I spent in creating and working with my team in this project has taught me the importance of planning a project instead of jumping into it right away.    Here is the link to my final project's proposal document:  Project Proposal Project Presentation
Post a Comment
Read more