Flow control statements allow a programmer to check conditions and based on the results of
the program. If there is a problem in code and goes to that certain line of code, but if the
code runs true it will repeatedly keep running. Also through flow control statements you
can use break and continue statements to continue an iteration and terminate it. The good
thing about C# is it can modularize code into manageable chunks and complex code can be
executed through C#. A great example of C# being used is when college students are trying
to get admitted into college like text scores, financial standing and GPA. Where C# comes
into play is colleges run out of space and they have limited financial aid to give out, having
C# would find a loophole and notify the school if there was space and financial aid
available last minute for a student if another student leaves. It wouldn't be possible to write
software to check various conditions and change execution paths. Flow control in
applications is accomplished using conditional operators and Booleans to railroad
designated inputs to their ideal outputs. These tools allow for applications to fulfil a variety
of select needs by associating actions on a user interface to Boolean values which
themselves are tied to actionable code. This conditional code is structured to the order of its
designer provide functionality when needs are met. The process is multiplied to create an
application with a host of uses. An example application would be a basic match-3 puzzle
game for iOS. The Ui for the app is going to be “minimalistic”. There’d be a PLAY,
OPTIONS, CREDITS, and “another game I made here” button. All this could be tied to a
branch of “if” statements that proceed to their corresponding screens. Functions for the
game would be tied to “start”, ”pause”, ”play” and ”share” where when conditionally read
as TRUE would execute their operations allowing the user to participate in my crafted
experience at their own leisure. Flow control allows for a flow to be controlled. That is in
my eyes a tailored experience that can be operated and observed by a participant. The
concept as applied to programming applies a level of automation to human interactions that
facilitate end-to-end transactions of all types. Flow control and functions operate in an
application like how the USB symbol looks. There is a starting point, multiple paths, and
the function calls would represent the tops. The USB symbol resembles this style of graph
that I would use to map out the functions and flow control. The USB symbol is a great
example for this especially when you put multiple in a graph. The Large circle would be the
starting point, the smaller circle, triangle, and the square would be the different paths or if
statements. The different tips would be the end of the function but depending on the point,
it would point to or call another function. Even the paths in the USB could represent paths
in a program, The long triangle would represent the normal flow and the two sides would
be the if statements that could result in a differing path to another function. I think that if
you were to add two symbols to a graph, it probably would not work as I would want it to
but the symbol would still be a great representation for flow control and functions. A good
example of a simple weather apps are the ones found on IOS and Android that provides
users with the current weather conditions, humidity, wind speed, and a five to seven-day
forecast. The main function usually starts displays the weather and temperature for the day
on the home screen. The apps have the main function call different sub-functions to display
the current weather conditions and the five to seven-day forecast. Sub-functions are
responsible for retrieving data from an external API, processing the data, and displaying the
results in a user-friendly format.The apps always allow you to select the user location by
using flow control to prompt the user to enter a location from a list. Once the location has
been selected the app calls a function to retrieve weather data for that location. When the
weather is displayed, flow control is used to determine how to display the results based on
the user's options selected. Flow control and functions allow weather apps to be more
flexible, modular, and easier to maintain. It allows developers to reuse code, reduce
redundancy, and make the code easier to understand. Flow control, on the other hand,
creates different paths for the user to customize the information they wish to have
displayed, making the app more responsive and user-friendly. Flow control is a basic but
very important/powerful concept in programming. It allows the programmer to have control
of how the lines of code execute and which ones execute. One of the simplest examples can
a discount if a customer purchases $100 or more of the product. If the purchase is greater
then $100USD, a 10% discount will be given.
Flow Control Example
If the customer bought $100 USD or more in product
b b b b b b b b b b b b ((Unit Price X # of Units) *.9)
If the customer bought less than $100 USD in product
b b b b b b b b b b b b Unit Price X # of Units
Not both of these lines of code will execute. One or the other and then the appropriate math
will be done based on the purchase price. Flow control allows the code to be more efficient,
maintainable, flexible, and scalable over time. Allowing the program, the ability to decide
which line of code will be executed next means the code doesn’t have to go line by line but
can skip lines of code based on previous lines of code’s results. This makes the code much
more usable and allows for many more scenarios to be solved by the program. Finally flow
control will allow the programmer to write less code as the flow control can allow for the
same code to be reused in a loop till X happens for an example. If less than 25, repeat. The
flow control will reuse the same line of code or lines of code till 25 has been met. Flow
control and functions are important concepts in programming that enable developers to
create complex and flexible applications. In a weather forecasting application, flow control
is used to determine how the program behaves in different scenarios. For example, if the
user enters an invalid location, the application would display an error message and prompt
the user to try again. Functions break down the program into smaller, reusable pieces that
can be combined to perform specific tasks, such as formatting the data returned from the
API or generating activity recommendations based on weather conditions. By using flow
control and functions, developers can create applications that are easy to modify and
extend. This means that new functions can be added, or existing ones modified without
having to change the main function's code. For instance, if the application needs to support
multiple weather APIs or display more detailed weather information, developers can modify
the existing functions or add new ones to achieve this.Flow control and functions are
powerful tools that enable developers to create flexible, maintainable, and extensible
applications. They allow developers to create applications that can adapt to changing
requirements and provide a better user experience. In the case of a weather forecasting
application, flow control, and functions would be used to handle user input, query the
weather API for data, and display the results, as well as generate actionable
recommendations based on the weather conditions. An example application is one where
students are being evaluated for admission to a university; various conditions need to be
checked such as test scores, GPA, statement-of-purpose, financial status - and flow control
statements are required to decide whether a student can be granted admission or not and
also whether the student can be considered eligible for financial aid. Also, there are limited
seats available in each course and there is a budget for financial aid, so loops come in
handy to grant admission to students as long as seats are available and as long as the aid
budget is not exhausted. Flow control also comes into play if a student declines an
admission, and an alternate student needs to be chosen for admission from the waiting list.
For code that is repeated (e.g. the same logic applies with slight variations for domestic, in-
state, out-of-state and international students), moving the concerned code to a function
allows us to avoid repeating very similar code in multiple places. Without flow control, it
would be impossible to write software to check various conditions and change execution
paths based on these, hence these are fundamental to C# (and any programming language).
Flow control in an application is used to help program execution take various paths. Often
times when the flow control sends the program execution a certain way different functions
could be called. It is the functions in your program that will not only be called based on
flow control but will be called and within them have flow control and even more functions
able to be called.
For example, lets say you have a web based account registration application. Users will be
required to fill out certain fields such as first name, last name, email and phone number. A
function be called once the user hits the submit button in order to check the information.
Inside the function could be flow control such as "if" statements to check that a value was
entered and that it was a valid value. The first step to any language is syntax, but there is a
lot more to building software system solutions than just building a system that compiles and
runs. (More on performance in future weeks). Most of us will work for an organization
where we are part of a development team. The ability to adhere to standards for code
development, data security/integrity, and performance will at the top of the priority list for
any development project. Thus, the introduction of style guides. A style guide is typically a
document that has rules and guidelines about how to write code. This is typically language-
specific but there are organizational style and standards that will be applied across all
languages and development platforms. C# has several types of flow control constructs that
can be found in other programming languages, such as loops, switches, and conditionals but
it also has some features and syntax for flow control.
A good example is "yield return" statement that allows creation of iterators that can repeat
a group of values over and over making it easier for working with large data sets. It also
has the "lock" statement that allows multithreading, creating critical sections of code that
can be used by one thread at a time. It helps prevents race conditions and synchronization
issues. In Conclusion C# as a lot of the same flow control that other languages have. And
do not let me forget to reiterate that it is one of the very important languages used to write
Operating system like IOS, Android, Linux, Windows and Mac OS. It is a trusted language
used for generations of platforms that have come and gone over the many years. That is
what makes it a great tool, is its unique features and Syntax to managing program flow and
creating efficient and effective code. The Control Flow Statements in C# are the statements
that Alter the Flow of Program Execution and provide better control to the programmer on
the flow of execution. The Control Flow Statements are useful to write better and more
complex programs. A program executes from top to bottom except when we use control
statements. We can control the order of execution of the program, based on logic and
values.
