Loop ~ C++ and Webprogramming

Loop is used to repeat a statement or more statements. There are three loops in C++.

while
for
do while

Do While

Do while almost similar with while. But, it always execute statement because do-while will check condition after all statements executed.

#include <iostream>

using namespace std;

int main(){
    int numr=10;
	
    do{
       cout << numr << endl;
       numr++;
    }while(numr<=10);

    cout << "finished";
    return 0;
}

Example :

10
finished

If you use while, it won't print numr's value because the condition is false from the beginning.

#include <iostream>

using namespace std;

int main(){
    int numr=10;
	
    while(numr<=10){
       cout << numr << endl;
       numr++;
    }

    cout << "finished";
    return 0;
}

Example :

finished