All the sources codes "But why ?"page 3

if (validInvList.Count > 0 && fileId != 0)
{
    isCountinue = true;
}
else
{
    isCountinue = false;
}

if (isCountinue == true && fileId != 0)
{

public class UnexpectedException extends RuntimeException {

i =0;
while (i<5)
  {
  x=x + "The number is " + i + "<br>";
  }