Can you explain me how they are different?

Question

int i=0;
while(i<=10){
// Something
}

int i=0;
do{
// Something
}while(i<=10);

Answer 1

Just to add to Serena Yvonne's answer, there is a chance that statements within a while loop won't be executed if the condition is not met. On the other hand, a do-while loop guarantees that the loop will execute at LEAST once.