Deguzmanpresentationprogramming

Project in Programming(Switch case and Looping statement)

Submitted by: Trisha G. de GuzmanSubmitted to: Mr. Erwin M. Globio

http://eglobiotraining.com/

Switch Case



Switch Case


> A switch, case, select or inspect statement is a type of selection control mechanism that exists in most imperative programming languages such as Pascal, Ada, C/C++, C#, Java, and so on. It is also included in several other types of languages. Its purpose is to allow the value of a variable or expression to control the flow of program execution via a multiway branch (or "goto", one of several labels).

The Main Reason using switch case : > To improve clarity, by reducing otherwise repetitive coding, and (if the heuristics permit) also offering the potential for faster execution through easier compiler optimization in many cases.


Programs that are related to switch case


1. The If – else Statement

>The if statement allows the programmer to make decisions within a program.

> The general format of an if statement is:

If (expression) statement

-Where expression represents a relational, equality, orlogical expression ( conditional expression) .


If statement (One-Alternatives)

If (condition) statement;

Form:

Note: if condition evaluates to true, then statement is executed and statement is skipped

If statement (two alternatives)

Form:If (condition) statement;else statement;

Note: if condition evaluates to true, then statement is executed and statement is skipped; otherwise, statement is skipped and statement is executed

Format of the if statement

- All if statement examples in this text indent statements. The word elseIs typed without indention on a separate line. The format of the if statement makes its meaning apparent and is used solely to improve program readability; The format makes no difference to the computer


If we know how to write a C expression that is equivalent of a question such as “Is resting the value of expression to select a course of action. In C, the statement is the primary selection control structure

Me: it’s hard to write c expression. So, I just copy and paste it into internet.

A programming language is an artificial language designed to communicate instructions to a machine, particularly a computer. Programming languages can be used to create programs that control the behavior of a machine and/or to express algorithms precisely.





How to save and run your statements?

1. Open Dev C++ 2. Click File and choose New 3. Post your Statements 4. after you post your statement 5. Save it .choose file and save or 6. click f9 or you can see it shaped like

a square



Five programs that is related on switch case statement




http://gd.tuwien.ac.at/languages/c/programming-bbrown/c_028.htm

Link:

The below program uses a switch statement to validate and select upon the users input choice, simulating a simple menu of choices.





When it compiles and run, this will be it looks like . The C expression that was type it on Dev C++ The words are “enter in two number 24”



http://www.morrowland.com/apron/tutorials/cpp/cpp_switch_case/index.php

Link:

Example of Switch Case Statement , you Will see the statement on the link that you see in this slide.





After I compile it and run it, the statement is now like this. As you Can see after you answer the 1st question the next question appear And after you finish all the question the box will disappear. It means finish.



http://www.morrowland.com/apron/tutorials/cpp/cpp_if_else/index.php

Link:

Function and target of Programming language :

A computer programming language is a language. used to write computer programs,

which involve a computer performing some

kind of computation or algorithm and

possibly control external devices such as printers , disk

drives , robots, and so on.







When the statement is done it will look like this. I got this from the URL . The URL was posted on the

previous slide



http://msdn.microsoft.com/en-us/library/66k51h7a(v=vs.80).aspx

Did You Know? The first programming languages predate the modern computer. The 19th century saw the invention of "programmable" looms and player piano scrolls, both of which implemented examples of domain-specific languages.


http://msdn.microsoft.com/en-us/library/66k51h7a(v=vs.80).aspx



Did You Know ? All programming languages have some primitive building blocks for the description of data and the processes or transformations applied to them(like the addition of two numbers or the selection of an item from a collection). These primitives are defined by syntactic and semantic rules which describe their structure and meaning respectively.


http://en.wikipedia.org/wiki/Language_primitive




http://www.cfanatic.com/topic4267/

Link:




Looping Statements



Looping Statements > Loops execute a block of code a specified

number of times, or while a specified condition is true.

> in PHP, the following looping statements are used:

*The while Loop * The Do… While Loop * The For Loop *The Foreach Loop *Break and continue statement


http://www.slideshare.net/ilakkiya/looping-statement



The While Loop


While structure is another type of loop statements, where the condition is checked at first, the iteration will not stop even if the value changes while executing statements.

Form: While(condition){ code to be executed;}




The do while loop

> Do while statement is same as the while statement , the only difference is that it evaluates the expression at the end.


Form: do { code to be executed; } while (condition):




The For Loop> The for loop is used when you know in advance how

many times the script should run. > Be for statement takes three expressions inside its

parentheses seperated by semi-colons. When the for loop executes, the following occurs:

> The initializing expression is executed. This expression usually initializes oneor more loop counter, but the syntax allow expression any degree of complexity.

> The condition expression is evaluated. Of the value of condition is true, the loop statements execute. If the value of condition is false, the for loop terminates.






Form:

for {initialization; condition: increment ) { code to be executed }




The Foreach Loop For Each structure is a loop structure used for

arrays

Form:foreach(array as value){ code to be executed}

Foreach (array as key => value){ code to be executed}





The break statement > Break ends the execution of the for,

for each, while, do-while or switch statement.


Form:* Break ( optional numeric argument)




The continue statement > “Continue” is used to skip the current loop

iteration and continue with the next iteration of the loop. But “Break” is to exit from the whole loop.


Form:* Break ( optional numeric argument)





http://www.morrowland.com/apron/tutorials/cpp/cpp_for_loop/index.php

The for loop









http://www.morrowland.com/apron/tutorials/cpp/cpp_do_while_loop/index.php

Do while loop








http://www.exforsys.com/tutorials/c-plus-plus/looping-in-c.html

While loop


http://www.exforsys.com/tutorials/c-plus-plus/looping-in-c.html




http://cprogramminglanguage.net/c-break-continue-statements.aspx

Break and continue


http://cprogramminglanguage.net/c-break-continue-statements.aspx




http://www.w3schools.com/php/php_looping_for.asp

Foreach loop


http://www.w3schools.com/php/php_looping_for.asp


Source

http://en.wikipedia.org/wiki/Switch_statement












Submitted to: Mr. Erwin M. Globio





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