Storing int value of bitmask - extract 1 valued bits

Posted by yankee2905 on Stack Overflow See other posts from Stack Overflow or by yankee2905
Published on 2010-05-28T21:41:22Z Indexed on 2010/05/28 21:52 UTC
Read the original article Hit count: 283

Filed under:

java

|

bitmask

I am calculating the int equivalent of a given set of bits and storing that in memory. From there, I would like to determine all 1 value bits from the original bitmask. Example:

33 --> [1,6]
97 --> [1,6,7]

Ideas for an implementation in Java?

© Stack Overflow or respective owner

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More

Related posts about bitmask

Storing int value of bitmask - extract 1 valued bits

as seen on Stack Overflow - Search for 'Stack Overflow'
I am calculating the int equivalent of a given set of bits and storing that in memory. From there, I would like to determine all 1 value bits from the original bitmask. Example: 33 -- [1,6] 97 -- [1,6,7] Ideas for an implementation in Java? >>> More
How to dynamically compose a bitmask?

as seen on Stack Overflow - Search for 'Stack Overflow'
Lets say I have to provide an value as bitmask. NSUInteger options = kFoo | kBar | kFooBar; and lets say that bitmask is really huge and may have 100 options. But which options I have, depends on a lot of situations. How could I dynamically compose such a bitmask? Is this valid? NSUInteger options; if… >>> More
Fastest way to calculate an X-bit bitmask?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have been trying to solve this problem for a while, but couldn't with just integer arithmetic and bitwise operators. However, I think its possible and it should be fairly easy. What am I missing? The problem: to get an integer value of arbitrary length (this is not relevant to the problem) with… >>> More
PHP : How to understand bitmask value of access from ini_get_all function

as seen on Stack Overflow - Search for 'Stack Overflow'
i'm start to use ini_get_all function to retrieve all configuration option on a shared host server. in the end i got this chunk of array : [allow_call_time_pass_reference] => Array ( [global_value] => 1 [local_value] => 1 [access] => 6 ) [allow_url_fopen]… >>> More
Creating a bitmask parameter for a function or method

as seen on Stack Overflow - Search for 'Stack Overflow'
I noticed a lot of Android functions have a parameter that you can pass in that's a bitmask, for different options, like on PendingIntent, you can pass in things like you can call getActivity() with PendingIntent.FLAG_CANCEL_CURRENT|PendingIntent.FLAG_NO_CREATE. I'm wondering how I can create a function… >>> More