Search Results

Search found 35663 results on 1427 pages for 'embedded java'.

Page 197/1427 | < Previous Page | 193 194 195 196 197 198 199 200 201 202 203 204  | Next Page >

• difference between hashmap and array list in java?

  - by Venkats

  In java, ArrayList and HashMap are using in collections. But i couldn't understand at which situations we should use ArrayList and which time use HashMap. What is the major difference between both of them?

  Read the article

• data mining open source software in java

  - by pat

  Hi i just like to know is there any open source data mining software written in java that is approximately less than 3k lines of codes? If yes, please give download link i need to do software testing thank you.

  Read the article

• Mint Linux - Downgrade Java to 1.5

  - by Chrisc

  Hello, Currently, I am running Mint Linux (Release 9). I need to downgrade Java from version 1.6 to 1.5, and have been trying to figure out how to go about this. So far, I've had no luck. The package manager doesn't seem to have it. Does anyone have any suggestions? Thanks, - Chris

  Read the article

• How to determine a random int between 1 and 800 in java

  - by Charlie

  I feel like this is trivial, but my brain is not functioning. How can I generate a random integer between 1 and 800 in Java?

  Read the article

• Any YAML based fixture loader for Java?

  - by Adrian

  I've used DbUnit but after playing about with the Play Framework recently I've found it's Fixtures.load(String yamlFilename) really useful. Anyone know of a similar tool that can be used with any Java project?

  Read the article

• Java Bing Image Search

  - by Zinx

  Hi All, I have a small application in java which searches images using bing image search. The problem I am facing is that, its getting only first 20 images. May be because when we search on bing.com it populates first 20 images first and then its an infinite scrolling feature. Is there any way to search more than 20 images using bing? Cheers :)

  Read the article

• java database backup restore

  - by jawath

  how do i backup /restore any kind of databases inside my java application to flate files.Are there any tools framework available to backup database to flat file like CSV, XML,or secure encrypted file,or restore from csv or xml files to databases ,it should be also capable of dumping table vise restore and backup also

  Read the article

• java interfaces

  - by Codenotguru

  write an interface with one method,two classes that implement the interface, and a main method with an array holding an instance from both classes.Using this array variable call the method in a foreach loop.This is a interview question in java anybody?

  Read the article

• How to create .exe file for java project.

  - by Manu

  hi all How to create .exe(executable)file for java project?. thanks for your help in advance.

  Read the article

• return type of main in java

  - by girinie

  Hi I like to know why only void return type for main method in java. public static void main(String [] args) Why there is no other return types other than void for main method. Thanks

  Read the article

• Java OCR package

  - by pstanton

  what is the best OCR package you've used with java? I need to parse mainly numbers in a single font and am looking for a well architected, lite weight library to use. thanks.

  Read the article

• Java marshaller performance

  - by cbz

  Hi, I've used JAXB Marshaller as well as my own marshaller for marshalling pure java bean objects into XML. It has been observed that both of them require almost same time to marshal. The performance is not acceptable and needs to be improved. What are possible ways where we can improve performance of marshaller? Like threading?

  Read the article

• Same keyword for two purposes in java?

  - by gurukulki

  As we use "default" keyword as a access specifier, and it can be used in switch statements as well with complete different purpose, So i was curious that is there any other keywords in java which can be used in more then one purposes

  Read the article

• Same keyword for two purposes in java?

  - by gurukulki

  As we use "default" keyword as a access specifier, and it can be used in switch statements as well with complete different purpose, So i was curious that is there any other keywords in java which can be used in more then one purposes

  Read the article

• How to Configure Google app engine Java project when using third party libraries like spring

  - by Praneeth

  How to configure applications that use Spring MVC for GAE Java. Is there an article which gives this information? More specifically I would like to know if I am required to upload spring related jars also to the cloud? How do I need to configure my application if I needn't upload these jars?

  Read the article

• Maximum number of type parameters used in a java class

  - by True Soft

  What is the maximum number of type parameters you used in a java class? Example for 4: class MyClass<A, B, C, D> { }

  Read the article

• Translate Ruby snippet to Java

  - by sipwiz

  How can I do the equivalent of the Ruby snippet below using Java? require 'net/http' res = Net::HTTP.get_response(URI.parse("http://somewhere.com/isalive")).body

  Read the article

• Java Operator Precedence Comparison

  - by Andrew

  Does java have a built-in method to compare precedence of two operators? For example, if I have a char '/' and a char '+' is there a method I can call that compares the two and returns true/false if the first is greater than the second (e.g. true)?

  Read the article

• Smartfoxserver java extension

  - by Daniel

  Hello, I'v created a java extension that handles login requests using smartfoxserver for my game. The following is inside the internal event: View Here: http://mfpurl.net/index.php/view/8e43b130 But its complaining invalid login request?

  Read the article

• Readkey in Java

  - by mouthpiec

  Hi, I am new to Java ... is there a similar method to the ReadKey() in C# to avoid that a console application closes? thanks

  Read the article

• What is the right data type for calculations in Java

  - by Raju

  Should we use double or BigDecimal for calculations in Java? How much is the overhead in terms of performance for BigDecimal as compared to double?

  Read the article

• java concurrency: many writers, one reader

  - by Janning

  I need to gather some statistics in my software and i am trying to make it fast and correct, which is not easy (for me!) first my code so far with two classes, a StatsService and a StatsHarvester public class StatsService { private Map<String, Long> stats = new HashMap<String, Long>(1000); public void notify ( String key ) { Long value = 1l; synchronized (stats) { if (stats.containsKey(key)) { value = stats.get(key) + 1; } stats.put(key, value); } } public Map<String, Long> getStats ( ) { Map<String, Long> copy; synchronized (stats) { copy = new HashMap<String, Long>(stats); stats.clear(); } return copy; } } this is my second class, a harvester which collects the stats from time to time and writes them to a database. public class StatsHarvester implements Runnable { private StatsService statsService; private Thread t; public void init ( ) { t = new Thread(this); t.start(); } public synchronized void run ( ) { while (true) { try { wait(5 * 60 * 1000); // 5 minutes collectAndSave(); } catch (InterruptedException e) { e.printStackTrace(); } } } private void collectAndSave ( ) { Map<String, Long> stats = statsService.getStats(); // do something like: // saveRecords(stats); } } At runtime it will have about 30 concurrent running threads each calling notify(key) about 100 times. Only one StatsHarvester is calling statsService.getStats() So i have many writers and only one reader. it would be nice to have accurate stats but i don't care if some records are lost on high concurrency. The reader should run every 5 Minutes or whatever is reasonable. Writing should be as fast as possible. Reading should be fast but if it locks for about 300ms every 5 minutes, its fine. I've read many docs (Java concurrency in practice, effective java and so on), but i have the strong feeling that i need your advice to get it right. I hope i stated my problem clear and short enough to get valuable help.

  Read the article

• parallel java libraries

  - by jetru

  I'm looking for Java libraries/applications which are parallel and feature objects that can be queried in parallel. That is, there is/are objects in which multiple types of operations can be made from different threads and these will be synchronized. It would be helpful if someone could ideas of where I could find such applications as well. EDIT: Actually, language doesn't matter so much, so C++, Python, anything is welcome

  Read the article

• Free Java library for converting existing PDF to PDF/A

  - by Shervin

  Hi. I am trying to convert PDF to PDF/A. Currently I can do this using OpenOffice pdf viewer plugin together with Jodconverter 2. But this is pretty cumbersome to do. Does anybody of any open source / free Java libraries I can use to do this.

  Read the article

• Why is System.arraycopy native in Java?

  - by James B

  I was surprised to see in the Java source that System.arraycopy is a native method. Of course the reason is because it's faster. But what native tricks is the code able to employ that make it faster? Why not just loop over the original array and copy each pointer to the new array - surely this isn't that slow and cumbersome? Thanks, -James

  Read the article

< Previous Page | 193 194 195 196 197 198 199 200 201 202 203 204  | Next Page >