binary to decimal / Palindromes

I am reading JAVA:How to program 7th /E , 4th chapter finished just now,

by the way can you tell me some lines of source, work , if i have a binary number (eg 1110001101) use "%" & "/" to make it decimal(ex.4.31 p.184) by picking off binary numbers one at a time ?

Palindromes: Also any function in java make a number it's inverse number, eg 12345 make it 54321 ?

java mob: pdas with large LCD programmed mainly in XHTML Basic ? Or can display and normal XHTML (with scrolls) ?

If I have two PCs is needed register Netbeans 6.1 IDE twice ?

You do not have to register at all, it is not mandatory :p

PLEASE ANSWER: And questions prior, at start...