do-while and while comparison

Question

do-while:

do
{ 
    i++; 
    ++j;
    System.out.println( i * j );

}
while ((i < 10) && (j*j != 25));

I am learning about do-w

Answer 1

Do-While loops are pretty useful for cases like these, where you ask the user a question, and the user has to answer it for the program to terminate. For example, this code:

import java.util.Scanner;

public class DoWhile {

    public static void main(String[] args) {
        int answer;
        do {
            System.out.println("What is 5+5?");
            Scanner scan = new Scanner(System.in);
            answer = scan.nextInt();
        } while (answer != 10);
    }
}