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Javin Paul

How to convert ArrayList to Set in Java with Example - 0 views

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    A good quick way of converting arraylist to set in java . ough its worth noting that all those method will eat duplicates silently and size of converted set might be less than or equal to original list.
Rinav G

JavaBlogging » What is serialVersionUID? - 2 views

  • private static final long serialVersionUID = 1L
  • and it is still there even after the program finished. Let’s see if we can read that file once again, this time without creating it first.
  • Now, let’s see what happens, when we change the serialVersionUID value and try to deserialize once again our file. Change the line 2 in the class SerializeMe so that serialVersionUID contains now 2 instead of 1:
  • ...13 more annotations...
  • serialVersionUID = 2L;
  • static final
  • Exception in thread "main" java.io.InvalidClassException:
  • As you can see, this time the deserialization didn’t go well. ObjectInputStream complained about the serialVersionUID being changed.
  • How does he know that it changed? If serialVersinUID is static, then it should not have been serialized in the first place, and there should be no information about the previous value 1 during the deserialization, right? Well, serialVersionUID is an exception to the rule that “static fields don’t get serialized”.
  • Moreover, if there is no serialVersionUID officially declared in the class to be serialized, compiler automatically adds it with a value generated based on the fields declared in the class.
  • The deserialization of that object does not necessarily have to occur exactly after serialization. It can occur after a few months or on a completely different JVM
  • there is a chance that the class declaration has changed between serialization and deserialization.
  • It checks if the data read from the input stream is compatible with the current definition of the class.
  • when the visibility of a field changes, the serialVersionUID changes too.
  • sometimes you just want for some reason to forbid deserialization of old serialized objects,
  • you might tend to write it once for every serializable class ( or have it generated by the IDE ) and forget about it. WRONG !!!
  • If you write it once and don’t take care to update it when necessary, you loose all the merits of serialVersionUID.
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    What is serialVersionUID? What is it Used For???
Miguel Guerra Connor

Log4j Tutorial : How to send log messages to different log files? | Veera Sundar - 0 views

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    multiples archivos log en log4j
Rem PC

The Best Remote PC Support I Ever Had - 1 views

The Remote PC Support Now excellent remote PC support services are the best. They have skilled computer tech professionals who can fix your PC while you wait or just go back to work or just simply...

remote PC support

started by Rem PC on 12 Sep 11 no follow-up yet
anonymous

How Offshore Java Development Companies Create 2D Game In Java ME - 0 views

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    With this article, we are going to provide you a quick introduction to Java ME development tools used by offshore Java Development vendors to create MIDlet. Java ME contains small JVM and a set of Java APIs that are used for developing mobile applications. So let's start and create your first mobile app with perfection.
Mahmoud Rabie

Using AspectJ to log all methods parameters and return values during application runtime - 8 views

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    AspectJ is an aspect-oriented extension created at PARC for the Java programming language. It is available in Eclipse Foundation open-source projects, both stand-alone and integrated into Eclipse. AspectJ has become the widely used de-facto standard for AOP by emphasizing simplicity and usability for end users. It uses Java-like syntax and has included IDE integrations for displaying crosscutting structure since its initial public release in 2001. In this article we will describe how we can use AspectJ to do the logging job for all methods parameters and methods return values in a Java application
Javin Paul

What is Constructor overloading in Java with Example - 0 views

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    Quick guide on what is Constructor overloading and how to implement constructor overloading in Java.
Paul Sydney Orozco

Cool Tutorial on Spring, Hibernate and MySQL Example - 0 views

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    Tutorial and Example on how to integrate Java, Spring, Hibernate and MySQL
Hendy Irawan

Testing Plug-ins with Fragments « RCP Quickstart: Learn the Eclipse Rich Clie... - 0 views

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    As Eclipse plug-in and Rich Client Platform developers, we face unique challenges in how we structure and execute our unit tests. In this article, I suggest an approach to unit testing based on Eclipse fragments that can help us overcome these challenges. If you find yourself frustrated with your current plug-in testing options, read on! But before going into detail on a fragment based solution, let's examine the current approaches and the pros and cons associated with each. The first approach is the one most of us start with as we learn the ropes of plug-in development: placing all code in a single plug-in.
abuwipp

Don't Use System.out.println! - 0 views

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    good tutorial showing how to log using log4j, contains  many examples
Dan Martin

Twitter Engineering: Twitter Search is Now 3x Faster - 0 views

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    How Twitter became 3x faster by switching from Ruby to Java and Lucene.
anonymous

How To Get Perfect And Reliable Java Consulting Services? - 0 views

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    Before we proceed ahead and discuss more about Java consulting services we must understand what exactly Java is. Well it is a sort of software programming language that is being used for the development of web pages, websites and many exciting applications.
Felipp Crawly

Thank You OPS - 1 views

I would like to thank Onward Process Solutions for providing me with a highly dedicated Virtual Sales Assistant who is friendly and highly skilled. Hence, I do not have to micromanage Anna because...

started by Felipp Crawly on 03 Jan 13 no follow-up yet
Paul Sydney Orozco

How to Add Form Validations in Spring MVC - 0 views

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    This tutorial covers adding validations to forms during submission using Validator interface from Spring. This is part of the Spring MVC tutorial series.
clariene Austria

Never Pay for Leads Again! Online Leads are Free. - 2 views

Leads don't grow in trees. You probably know the value of a lead to your business and how much you would pay for a lead. But what if you could create a system for lead generating that worked 24/7 a...

started by clariene Austria on 15 Jun 12 no follow-up yet
krowddigital

How Can You Boost The Brand Value of Your Company? - 1 views

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    Every business owner wants to make headlines when launching a new service or product
krowddigital

How Can You Boost The Brand Value of Your Company? - 1 views

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    The goal of every business owner is to make headlines when they launch a new service or product
clariene Austria

What you need to know about seo websites - 2 views

If you're not being found on the search engines, then it's likely you didn't have an seo websites. A lot of web designers out there know how to make great looking websites that Google can't see. T...

started by clariene Austria on 03 Jul 12 no follow-up yet
clariene Austria

What you need to know about seo website development - 1 views

If you're not being found on the search engines, then it's likely you didn't have an seo website development. A lot of web designers out there know how to make great looking websites that Google ca...

started by clariene Austria on 04 Jul 12 no follow-up yet
hansel molly

Great Remote Computer Support Services - 3 views

Computer Support Professional offers unrivaled online computer support services that gave me the assurance that my computer is in good hands. Every time I needed the help of their computer support ...

computer support

started by hansel molly on 06 Jun 11 no follow-up yet
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