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Mudassir Shahzad | June 23, 2017

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Stop Wasting Money On WebLogic, WebSphere, And JBoss Application Servers

June 6, 2014 |

Use Apache Tomcat. It is free.

I don’t understand why firms spend millions of dollars on Java application servers like Oracle Weblogic or IBM WebSphere Application Server. I get why firms spend money on Red Hat JBoss — they want … Read More

Java Versions, Features and History

May 12, 2014 |

This article gives you a highlight of important features added in every major Java release. I am sure you will find it interesting. Read More

What are Jax-RS, Jax-WS and Jax-B ?

April 24, 2014 |

Nowadays, different systems are inter-connected by using webservices. One system provides a webservice and one or more systems consume it and vice versa.

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Why main method is static in Java

June 21, 2013 |

This is one of the basic question asked in interviews or in gatherings of professionals.

So here we go,

Main method is static in java because

 

This is just a convention. In fact, even the name main(), and the arguments passed in are purely convention. Read More

Deadlocks in Java – How to avoid

April 18, 2013 | | 16 Comments

Deadlocks in Java is one of the tough categories in which interview questions are asked about multithreading, asked more at a senior level and with lots of follow up questions, though question looks very basic but most of developer get stuck once you start going deep.

The question might start with “What is deadlock ?” Read More

Pass-by-Value Please (Cup Size continued)

April 5, 2013 | | One Comment

Reblogged

If you haven’t read the Cup Size story, this one won’t make sense. Or it will make sense, but you’ll think its really stupid. Or you won’t think it’s stupid but you’ll find yourself… never mind, just go read it now and then come back. Read More

Two service methods in HttpServlet class

February 15, 2013 | | 2 Comments

Whenever we write a servlet, we inherit our class from HttpServlet which contains two service methods. Let’s have a look at the difference between both.

This article assumes that you have a basic knowledge of method overriding and overloading.

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Cup Size – A story about variables

February 5, 2013 | | 4 Comments

 

The Coffee Corral coffeehouse at the Ranch is famous around these parts for its unique cup collection. If you really need to understand the way values and objects are used in Java, you gotta start here. Read More

Abstract Classes Vs Interfaces – When to use which

February 2, 2013 | | 3 Comments

This is one of the mostly asked question in job interviews or other professional gatherings.

Most of the candidates are able to tell the difference but they get stuck in the second part, WHEN TO USE WHICH ? Read More

Native methods in java – Java Native Interface (JNI)

January 29, 2013 | | One Comment

java.lang.Object class defined like

Now, in spite of having two years of hands on experience in java and related technologies, I didn’t know that it is a native method. This made me dig deeper and explore the native interface API provided by java. Read More

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