do-while Statement :

The do-while statement is an exit-controlled repetition structure. In this type
of loop, the loop body is executed first, and the condition is evaluated after the
execution of the loop body. As a result, the statements inside the loop are
executed at least once, regardless of the condition.

SYNTAX:

do
{
    statements;
}
while (condition);

EXAMPLE:

#include<stdio.h>

int x = 1;
int main(){
   do{
       printf("hi\n");
       x++;
   }while(x<4);
  return 0;
}

Output:

hi
hi
hi