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  • Vector vs ArrayList in Java

    Difference between Vector and ArrayList is one of the oldest Java Interview question. Though Vector has been outdated from long time, I still see this
  • How to check if one String matches to other in Java

    In Java, String is very useful class. more often than not you will be using String. One of the common task while dealing with String is to check if so
  • How to get sublist from ArrayList in Java

    Suppose you have a List of numbers and you are only interested in numbers between 500 to 1000, how will you get that from ArrayList in Java? Well you
  • Difference between DOM and SAX Parser

    In order to use DOM and SAX parser correctly, its important to know that How DOM and SAX parser work and What are differences between SAX and DOM pars
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    • Cat:Misc

  • How to convert String ArrayList to Array in Java

    One of the common task in Java is to convert between an arraylist and an array. This should not be difficult right ? Why because arraylist stores its
  • Difference between Overriding and Overloading

    Difference between Overloading and Overriding is probably one of the oldest OOPS interview question, but it is still very relevant. If you want to tes
  • SOAP and REST Web Service Interview Questions Answers

    Web Services is one of the important technology from eCommerce world. It allows to communicate client and server irrespective of their platform. SOAP
  • How to use keytool command to create keyStore in Java

    keytool is a binary utility which comes along JDK installation. After installing JDK, you can go to the bin directory and can find this command. It is
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    • Cat:Misc

  • ServletContext vs ServletConfig

    ServletContext and ServletConfig are two key object from Servlet world. There is only one ServeltContext per web application but there can be multiple
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    • Cat:J2EE

  • What is a Blank Final Variable in Java

    Final is a very special keyword in Java. You can apply final keyword to variable, method and classes, but do you know what is a blank final variable?
  • 6 rules of Method Overriding in Java

    Method overriding is very powerful feature of Java programming language, it allows you to add flexibility in your program, which is key for maintenanc
  • Some tricky questions from Java Interviews

    Some questions are not so easy to answer, they had something out of ordinary on them, which makes them tricky. Following is collection of some of the
  • Top features of Java 1.5

    Java 1.5 was one of the biggest release in Java. It introduce lot of useful features e.g. Enum, Generics, Autoboxing, Variable arguments and Static im
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    • Cat:Misc

  • What is Action class in Struts Framework

    Action class is in heart of Struts MVC framework, this article gives brief overview of Action classes and different types of Action in Struts.
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    • Cat:Struts

  • How to use CopyOnWriteArrayList in Java

    CopyOnWriteArrayList was added in JDK 1.5 but not many programmer are aware of this handy implementation of List interface. It is very useful in concu
  • 10 best Java Collection Framework Interview questions

    Along with, multi-threading and design patterns, Collection framework is one of the most popular topic among Java interviews. No matter how much exper
  • Variable argument or varargs in Java

    The full form of var-args is variable length arguments and this one of the java 1.5 features.Also we have some important autoboxing, generics,for-each
  • Upload CSV file into MySql Database based on columns us

    The CSV file is having multiple values to insert in perticular columns and rows in mysql database. Read more:
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    • Cat:JDBC

  • Hibernate One to Many mapping annotation with

    This tutoral basically about how to implement Hibernate One to Many Mapping using Annotations in Struts 2