What are the 3 types of loops explain with example?

There are three Types of loops.

i)          for loop

ii)         while loop

iii)        do while loop

Examples of loops

For loop example code

 

#include <iostream.h>

#include <conio.h>

void main(void)

{    clrscr();

int num, fact=1;

cout<<"Enter a number ";

cin>>num;

for(int a=num;a>0;a--)

{

  fact *= a;

}

cout<<"Factorial of "<<num<<" is "<<fact;

getch();

}

While Loop example code

#include<iostream.h>

#include<conio.h>

void main(void)

{    clrscr();

int a=15;

while(a<1 || a>10)

{

   cout<<"Enter a value (1-10) ";

cin>>a;

}

cout<<"Value entered is between 1 - 10";

getch();

}

do while loop example code

#include<iostream.h>

#include<conio.h>

void main(void)

{ char ch;

   int t;

   do

{   clrscr();

  cout<<"Enter Table value ";

  cin>>t;

  for(int a=1;a<=10;a++)

      cout<<t<<" x "<<a<<" = "<<t*a<<endl;

  cout<<“Press Y to Continue ";

  ch=getche();

     }while(ch=='Y' || ch=='y');

  cout<<"\nThanks for using program";

  getch();

}

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