Reena programming

FINAL REQUIREMENT

Reena R. Perez

http://eglobiotraining.com/

 In programming, 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# programming
language , Java, and so on.


It is also included in several other types of
programming 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 reasons for using a switch
include improving 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.


 char key;
 C#
 In C# programming, every case  printf("Enter an arithmetic operatorn");
 scanf("%c",&key);
block that contains any
statements must have a  switch (key)
reachable end point, or triggers a  {
compilation error.In  case '+':
 add();
programming usually, this is a
 break;
break statement, but any jump
statement can be used – such as  case '-':
return, goto or throw – or the  subtract();
 break;
switch can simply end with an
infinite loop. Case fall-through is  case '*':
only permitted when there are no  multiply();
statements between one case  break;

statement and the next. If fall-
 case '/':
through is otherwise desired, it  divide();
must be made explicit with the  break;
goto case construct. C#
 default:
programming also allows the
 printf("invalid keyn");
use of non-integer case  break;
values, such as Strings.  }

#include<iostream>
#include<stdlib.h>

using namespace std;
int main ()
{

int number_of_units, tuitionfee, paymentforunits;

cout<< "number of units you are to enroll:nn";
cin>>number_of_units;

paymentforunits=number_of_units*150;
cout<<"payment for units:nn"<<paymentforunits;

tuitionfee=paymentforunits+15%+20;
cout<<"tuition fee:nn"<<tuitionfee;

system("PAUSE");
return 0;

}


 Select Case n
 Case Is < -5
 MsgBox("n is less than -5")
 Visual Basic .NET  Case -4 To -1
 MsgBox("n is between -4 and -1")
 Case 0
 MsgBox("n is 0")
 In programming, Visual  Case 2, 4, 6, 8
Basic .NET, the switch 

MsgBox("n is even")
Case 1, 3, 5, 7, 9
statement is called  MsgBox("n is odd")
"Select Case 

Case Else
MsgBox("only single-digit numbers are
programming", and fall- 
allowed.", vbCritical)
End Select
through to later blocks is 

not supported. 

Visual FoxPro

However, ranges and 

Visual FoxPro:

various constructs from If  Do Case
statements are both 

Case field_1 = "X"
Replace field_b With 1
supported  Case field_1 = "Y"
 Replace field_b With 2
 Case field_1 = "Z"
 Replace field_b With 3
 Endcase


 #include<iostream>

int main(void)
{

char grade;
 Haskell
cout << "Enter your
grade: ";

cin >> grade;
 Haskell's case
construct, unlike C-influenced switch (grade)

programming languages, has {
no fall-through behaviour. It is case 'A':

a programming expression cout << "Your average
which returns a value, and it must be between 90 -
100"
can deconstruct values using
pattern matching. << endl;

break;

case 'B':

cout << "Your average
must be between 80 -
89"

<< endl;

break;

case 'C':

cout << "Your average
must be between 70 - http://eglobiotraining.com/
79"

#include<stdlib.h>
#include<iostream>

int main()
{
char gender;

cout<<"Enter your Gender.";
cin>>gender;

if (gender == 'M'||gender == 'm')
cout<<"Male";
else
cout<<"Female";
cout<<"nnn";

system("PAUSE");
return 0;
}


 using namespace std;

 Pascal 

int main()
{
 int a;
 cin >> a;
if ( a <= 10 )
 In 
 {
Programming, Pas 
10" << 'n';
cout << "Below

cal does not allow 

}
else
“fall through”, but  {
 if ( a < 60 )
has ranges and  {
comma separated 
cout << "Below 60" << 'n';
literal lists. 
 }
}

 return 0;
 }



 int main()
 {
 Perl 

char myinput;
cin >> myinput;

 switch (myinput)
 Perl 5.10 has a  {
 case 'a':
powerful built in 
switch statement 
cout << "Run program 1n";

called given, where 
break;
case 'b':
the programming  {
cases are called 
cout << "Run program 2n";
when: 
cout << "Please Waitn";

break;
 }
 default:

cout << "Invalid choicen";

break;
 }
 return 0;
 }

#include<stdlib.h>
#include<iostream>
#include<stdio.h>
#include<conio.h>


int main()
{
float total_purchase=0, purchase_discount = 0, net_bill=0;

cout<<"PLEASE INPUT TOTAL PURCHASE: ";
cin>>total_purchase;

if (total_purchase >=2000)
purchase_discount = total_purchase*0.10;
cout<<"THE DISCOUNT IS:";
cout<<purchase_discount;
net_bill = (total_purchase)-purchase_discount;
cout<<"nYOUR NET BILL IS:";
cout<<net_bill;

system("PAUSE");

return 0;
}

 In programming, very often when you write code, you want
the same block of code to run a number of times. You can
use looping statements in your code to do this.

 In programming, the JavaScript programming have the
following looping statements:

 While programming- loops through a block of code while a
condition is true
 Do...while programming- loops through a block of code
once, and then repeats the loop while a condition is true
 For programming- run statements a specified number of
times


 #include <iostream>
 while

 int main()
 In programming  {
while statement  int x;
will execute a  x = 0;
block of code while  do {
a condition is true..  // "Hello, world!" is printed at least
one time
 // even though the condition is
false
 cout<<"Hello, world!n";
 } while ( x != 0 );
 cin.get();
 }


 Do...while 

/**
** This example contains a switch statement that performs
 ** the same statement for more than one case label.
 In Programming the  **/

do...while statement  #include <stdio.h>

will execute a block of  int main(void)
 {
code once, and then it  int month;

will repeat the loop  /* Read in a month value */
 printf("Enter month: ");
while a condition is  scanf("%d", &month);

true  /* Tell what season it falls into */
 switch (month)
 The Java 

{
case 12:
programming 

case 1:
case 2:
language also 

printf("month %d is a winter monthn", month);
break;
provides a do-while  case 3:
statement, which can 

case 4:
case 5:
be expressed as 

printf("month %d is a spring monthn", month);
break;
follows:  case 6:
 case 7:
 case 8:
 printf("month %d is a summer monthn", month);
 break;

 case 9:
 case 10:
http://eglobiotraining.com/  case 11:
 printf("month %d is a fall monthn", month);
 break;

 #include <iostream>

 using namespace std; // So the program
can see cout and endl
 for
 int main()
 {
 In programming the “for”  // The loop goes while x < 10, and x
increases by one every loop
statement will execute a block  for ( int x = 0; x < 10; x++ ) {
of code a specified number of  // Keep in mind that the loop condition
checks
times  // the conditional statement before it
loops again.
 // consequently, when x equals 10 the
loop breaks.
 // x is updated before the condition is
checked.
 cout<< x <<endl;
 }
 cin.get();
 }


 The Infinite Loop:  #include <iostream>
using namespace std; int
 A loop becomes infinite main () { for( ; ; ) {
loop if a condition never printf("This loop will run
becomes false. The for forever.n"); } return 0; }
loop is traditionally used
for this purpose. Since
none of the three
expressions that form the
for loop are required, you
can make an endless
loop by leaving the
conditional expression
empty.


 While Loop  #include <iostream.h>

int main(void) {
int x = 0;
 In int y = 0;
bool validNumber = false;
programming, Fo while (validNumber == false) {
r repeating C cout << "Please enter an integer between 1 and
10: ";
programming cin >> x;
cout << "You entered: " << x << endl << endl;
statements whiles if ((x < 1) || (x > 10)) {
a condition is cout << "Your value for x is not between 1 and 10!"
<< endl;
true,the while cout << "Please re-enter the number!" << endl <<
endl;
provides a the }
else
necessary validNumber = true;
}
mechanism.
cout << "Thank you for entering a valid number!"
<< endl;

system("pause");
return 0;
} http://eglobiotraining.com/

 Input : In any programming language input
means to feed some data into program.
Programming can be given in the form of file
or from command line. C programming
language provides a set of built-in functions to
read given input and feed it to the program as
per requirement.
 Output : In any programming language
output means to display some data on
screen, printer or in any file. C programming
language provides a set of built-in functions to
output required data.


Reena programming

Recommandé

Recommandé

Contenu connexe

En vedette

En vedette (20)

Reena programming