The explainning of following statements.??

Question

i dont know the following statements meanning.
can anyone help me?
frist:
why the java filename should be the same to the class name?
second:
public static void main(String[] args)
what does this statement mean?,and why we always put the String array as the parameter?
thanx for any help.

Answer 1

To second:
You can "give" your main method values, when you start the class. like: java MyClass 7 Fuzzy 81
these 3 values are handled as Strings, and you can use them in your class.
when you have a line in your main method like:
int firstValue = Integer.parseInt(args[0]);
you get firstValue as an int which is 7.
String secondValue = new String[stringLength]
secondValue[0] = args[1]; ... secondValue is a String, and on first position: Fuzzy
int thirdValue = Integer.parseInt(args[2]); another int with the value 81.
Hope that all was correct, Im a newbie, too
Regards
Martin