Search Results

Search found 41348 results on 1654 pages for 'java developer'.

Page 223/1654 | < Previous Page | 219 220 221 222 223 224 225 226 227 228 229 230  | Next Page >

• Validating input using java.util.Scanner [closed]

  - by bhavna raghuvanshi

  I'm taking user input from System.in using a java.util.Scanner. I need to validate the input for things like: It must be a non-negative number It must be an alphabetical letter ...etc What's the best way to do this?

  Read the article

• How Java do the string concatenation using "+"?

  - by Tom Brito

  I read about the way Java works with += operator, using StringBuilder. Is it the same with a ("a" + "b") operation?

  Read the article

• Create servlet from existing Java project

  - by user69514

  I have a Java Swing project for my class. I would like put it on my website so people can use it. However I'm not sure if there is a way to turn it into a servlet. Or do I need to know JavaScript? I'm confused. Is there a way to make my swing application into a servlet automatically?

  Read the article

• Can I add Java portlet in sharepoint 2007?

  - by Samiksha

  Can I add Java portlet in sharepoint 2007? If yes, can some please explain the details on how can I do so?

  Read the article

• Refreshing data in a java.sql.ResultSet

  - by llm

  I have a java.sql.ResultSet object containg data from a query that was run. How do I refresh the data in the ResultSet to reflect the current data in the database? Thanks!

  Read the article

• Programatic Access to the Java Plug-in Control Panel

  - by Mike Caron

  Is there a way to access the Java Plug-in Control Panel programatically? Or at least find the places in the Windows File System where the information backing that control panel is stored?

  Read the article

• Java: Check if file is already open

  - by hello_world_infinity

  I need to write a custom batch File renamer. I've got the bulk of it done except I can't figure out how to check if a file is already open. I'm just using the java.io.File package and there is a canWrite() method but that doesn't seem to test if the file is in use by another program. Any ideas on how I can make this work?

  Read the article

• why java Object class is not abstract ?

  - by JavaUser

  Hi, Why java's Object class is not an abstract class . Is there any specific reason ? Thx.

  Read the article

• Is PKCS#1 V2.0 implemented for Java?

  - by Tom Brito

  I need encrypt data using exactly the PKCS#1 V2.0 encryption method (defined in item 7.2.1 of the PKCS#1V2 specification). Is it already implemented for Java? I'm thinking in something like just pass a parameter to javax.crypto.Cipher specifying "PKCS#1V2", I wonder if there is something like this?

  Read the article

• Reverse "Hello World" in Java

  - by Vicheanak

  Hello I want to do reverse each word of the String in Java example if input String is "Hello World" then the output should be "olleH dlroW".

  Read the article

• How can I create an image with Java?

  - by Roman

  I would like to create a gif image of a filled red circle on a green background. What is the easiest way to do it in Java?

  Read the article

• Java Compare Addresses

  - by Tom

  Hi, Does anyone know a library to compare addresses in Java ? Something that would give equality on addresses, written in different ways. For example, it should recognize that "22 Acacia Avenue" and "22 acacia av." is the same address. Of course, this can escalate a lot, that's why i'm asking. Thanks in advance.

  Read the article

• Best cache framework for Java

  - by Rodrigo Asensio

  I need to implement a cache solution in java for a cluster of 9 servers with web applications. I saw apache JCS, seems old, do you know another open source solution ? thanks

  Read the article

• Which CMS should i use for building website in java

  - by Mirage

  I use joomla to build php websites as it has logins , registrations and many extension to make my work easier. IS some cms available for building webistes in java with some pre loaded features so that i don't have to code it from scratch

  Read the article

• Getting compilation timestamp of a java class

  - by Alex Kravets

  Is it possible to reliably determine the compilation time stamp of a given class for both java applications running locally and as applets and/or JNLP webapps ?

  Read the article

• [Java] how to run in background

  - by Daeyun

  I want my Java program to run in the background. I'm on Windows 7. Do you have any idea? Thanks!

  Read the article

• Simple Java AMPQ server

  - by splix

  Are there exists an simple AMPQ server/broker implementation written in Java? I need it only for local integration tests, starting it from ant/maven, and i don't need any features like a clustering, persistence, performance and so on. Just a fake RabbitMQ-like instance, without installation (just as a dependency at maven pom) and configuration.

  Read the article

• What do you consider the best CMS in Java

  - by Petr Macek

  Which CMS are you using in Java and what is your experience with it (in terms of extensibility, usage comfort, framework API, memory usage, performance etc.). I am looking for suggestions.

  Read the article

• Is there any Gmail API for Java

  - by chenxgre

  I am trying to crawling google gmail inbox and download messages into the database, is there any gmail java api can best do this job?

  Read the article

• Scalable images in Java

  - by CodeGuy

  I anticipate using some images in my Java application. These images will be drawn onto my JPanel using g.drawImage(). The JPanel is resizable and the images should scale as the JPanel increases/decreases in size Two questions: What image format is best for this type of desired scalable image? For instance, in this application, an image of size 100x100 may be scaled into an image of size 30x30 or 10x10 or 300x300. How can I write code to do this scaling?

  Read the article

• Hexadecimal string to byte conversion in java

  - by helpjava

  I have a hexadecimal string "41464353". I want to convert it into bytes. I know the value of this hex string in byte will be "65706783". I want this as answer. Please give me a program for this in Java.

  Read the article

• Java xml binding with wrong xmlns attribute name

  - by Tom Brito

  When I use the annotation: @XmlRootElement(name="RootElement", namespace="namespace") class RootElement { to create xml file from java, it creates the root element as: <ns2:RootElement xmlns:ns2="namespace"> but I wanted to create without the "ns2", like: <RootElement xmlns="namespace"> Any idea how to fix it? Reletad link (example I used to create the xml): http://www.java2s.com/Code/JavaAPI/javax.xml.bind.annotation/XmlRootElementname.htm

  Read the article

• How to use a java scoket in tapestry5?

  - by shane87

  How do I implement a java socket in tapestry5? Should it go in the services sub-package? if so how do i use it?

  Read the article

• Getting default value for java primitive types

  - by ripper234

  I have a java primitive type at hand: Class c = int.class; // or long.class, or boolean.class I'd like to get a 'default value' for this class - specifically the value is assigned to fields of this type if they are not initialized. E.g., '0' for a number, 'false' for a boolean. Is there a generic way to do this? I tried c.newInstance() But I'm getting an InstantiationException, and not a default instance.

  Read the article

• Best Java thread-safe locking mechanism for collections?

  - by Simon

  What would be the least-slow thread-safe mechanism for controlling multiple accesses to a collection in Java? I am adding objects to the top of a collection and i am very unsure what would be the best performing collection. Would it be a vector or a queue? I originally thought an ArrayList would be fast but i ran some experiments and it was very slow. EDIT: In my insertion testing a Vector delared using volatile seems to be the fastest?

  Read the article

< Previous Page | 219 220 221 222 223 224 225 226 227 228 229 230  | Next Page >