Can anyone tell me what exaxtly IS loops? I did learn the tutorial in http://www.cprogramming.com/tutorial/lesson3.html . But i don't seemed to understand what's the function of "endl". I also don't understand why why is endl put in, for example, cout<< x <<endl;. And what is x++, x = x + 10, or even x = random ( 5 ). What do they mean when they says "The variable update section is the easiest way for a for loop to handle changing of the variable"?
I fully understand DO..WHILE loops, and i think I understand a bit of While loops.
But still, can anyone explain what's While loops is? Thanks in advance people =)