Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries. Thanks for all your past and future contributions.

Revision as of 14:16, 11 July 2007 by njzk2 (Talk | contribs)

How to swap variable values in Java ME using bitwise operations

From Wiki
Jump to: navigation, search

How to swap variable values using bitwise operations.

Heres a sample code that swaps 2 variable values

class test 
public static int a = 10,b = 20;
public static void main(String[] args)
test t = new test();
public void swap(){
a= a^b;
b = b^a;
a = a^b;
System.out.println("a "+a+" b "+b);

The above code can be considered as much more optimized in terms of other swapping code it does not use any temp variables,secoundly it uses bitwise operators which also do internally require temp varibales to do the operation and thirdly it will be faster then the normal swap operations as bitwise operations are considered to be faster then other normal operations.

125 page views in the last 30 days.