- Monday, July 12, 2010, 20:54
- How-To, Java
- 951 views
As a Java developer, lot of times I have to play around with file system. Sometimes I have to copy files/directories from one location to another; sometimes have to process certain files depending on certain pattern. In one of my test program, I wanted to calculate available disk space using Java. Lot of code snippets are ...
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- Friday, July 9, 2010, 9:00
- How-To, Java
- 1,678 views
Here is a small but very useful tip that every Java programmer should be aware of. Have you ever tried sorting arrays in Java? Well, java.util.Arrays class has built in method to make your job easy. You can use following method to sort any array in Java.
import java.util.Arrays;
...
...
Arrays.sort (int )
Arrays.sort (float )
Arrays.sort (long )
...
Let us check an example were we will sort an array of ...
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- Monday, February 15, 2010, 11:00
- Java
- 5,998 views
iText is a wonderful library if you want to generate PDFs in Java. It comes with a huge set of API to create/manage a PDF file. We already saw in our previous tutorial
how to generate a pdf file in itext and also
how to merge ...
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- Wednesday, February 10, 2010, 15:12
- Java
- 14,774 views
Quote 1: Avoid creating unnecessary objects and always prefer to do Lazy Initialization
Object creation in Java is one of the most expensive operation in terms of memory utilization and performance impact. It is thus advisable to create or initialize an object only when it is required in the code.
public class Countries {
private List countries;
public ...
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- Friday, January 22, 2010, 3:14
- Java, News
- 1,323 views
The European Commission on Thursday approved Oracle Corp.'s acquisition of Sun Microsystems after regulators were assuaged over the fate of an open-source database, James Gosling have paid respect to Sun Microsystem on his
blog. Please go to his blog and pay your respect to Sun.
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- Thursday, December 24, 2009, 16:05
- How-To, Struts 2
- 11,705 views
Welcome to Part-3 of 7-part series of tutorials where we will go through different practical aspects of Struts2 Framework. In the last part we Created a
Basic Struts2 Application from Scratch. I strongly recommend you to go through the previous articles in case you are new to Struts2.
In this article we will learn how to ...
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- Wednesday, December 23, 2009, 13:00
- Featured, Struts 2, Tutorial
- 20,950 views
Welcome to the Part 2 of 7-part series where we will explore the world of Struts 2 Framework. In
previous article we went through the basics of Struts2, its Architecture diagram, the request processing lifecycle and a brief comparison of Struts1 and Struts2. If you have not gone through the previous article, I ...
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- Tuesday, December 22, 2009, 13:00
- Struts 2, Tutorial
- 10,557 views
Lot of times I have been asked by users on this site to write tutorial about Struts 2 Framework. My previous tutorial on
Creating Struts Application in Eclipse is one of the most viewed article on this site.
So lets begin Part 1 of 7-parts series tutorials on Struts 2 Framework. In these tutorials we will discuss ...
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- Friday, December 11, 2009, 15:41
- Java
- 683 views
Synopsis
This note deals with AMQP, and some implementations, especially Qpid and ActiveMQ.
Introduction
AMQP stands for Advanced Messaging Queuing Protocol. It is a standard for cross platform messaging. It is a wire protocol and aims to enable functional compatibility between clients (from various platforms) and messaging brokers.
It is pretty comprehensive and aims to cover all distributed business scenarios. ...
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- Thursday, December 10, 2009, 15:31
- Java
- 1,568 views
Synopsis
This note describes a few simple commands on how to view the RAM and CPU usage of your Java process. It provides brief pointers on how to identify the influencing parameters and how to tweak it.
Memory
Java Heap
The heap size of your Java process can be controlled by using a combination of –Xmx and –Xms.
The heap size ...
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