[CaptainMorgan]

Taken from the wiki on keywords, which you can read for yourself, I'll just throw out very general examples.

Well first, what is your understanding of basic English? Throw is an irregular verb, while throws is a third person singular verb. More basically:

Quote:

throw a baseball

and

Quote:

how many throws did he commit?

That said, let's apply this concept to the Java language.

Code:

 ...
 if (baseball == strike) {
   throw strikeException;
 }
 ...

respectively, as in the basic English example:

Code:

public static void PitcherMethod throws strikeException {
 ...
}

Hope this helps.