i think .jar will be good option

use array to store the result, and at last show the result.

dont use loop for it,
you can do the same job with pattern (http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/Pattern.html#field_summary)
or regular expression...

run server socket in separate thread.

for 2nd:



for(int j=0; j< 2*triangleSize+1; j++)
{
int i=j;
if(j>triangleSize)
i=2*triangleSize-(j+1);
for (int k=0; k<i; k++)

for 1st:
use quitYesNo.compareToIgnoreCase("q");
see the doc (http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html)

use:

boolean b;
int iSomeValue;

b=true;
if(iSomeValue==0)b=false;


or use function