public class Do
{
  public static void main(String args[])
  {
    int i = 20;

    while (i < 10)
    {
      System.out.println("in while, i =" + i);
      i++;
    }
    i = 20;
    do
    {
      System.out.println("i =" + i);
      i++;
    } while(i < 10);
  }
}