would u tell us how u r executing the program???
and if possible send us the code also..

While running the program  using command  line did you mentioned the argument
like this...

i want the complte program.so that i can compile u r pgm and
send u r problem

here is a simple  example

//file myclass.java
//source code

class myclass{
public static void main (String params[]){
for (int i=0; i< params.length; i++){
System.out.println(params[i]);
}
}
}

//compile
> javac myclass.java

//no errors of course cuz i wrote it ;-)
//Call it from command  line as:
> java myclass first-arg second-arg third-arg

//output looks like
first-arg
second-arg
third-arg


Make this example and then make ur code something like it.

this type of programe are not available with use of netbean5.5

while running put java <file Name> <letters to be print> press enter