String and StringBuffer are two classes which is used to represent text data, with one key difference. String is immutable in Java while StringBuffer http://java67.blogspot.com/2012/08/difference-between-string-and-stringbuffer-in-java.html
Package is a way to organize your code in Java, it provides structure and support to separate functionalities at different place making maintenance ea http://java67.blogspot.com/2012/08/what-is-package-in-java-how-to-use.html
There are two common ways to use Thread class in Java, either by extending java.lang.Thread or implementing java.lang.Runnable interface, but there ar http://java67.blogspot.com/2012/08/what-is-thread-and-runnable-in-java.html
One of the simplest introduction of one of the most confusing concept in Java, Serialization; both custom and default Serialization. It has special u http://java67.blogspot.com/2012/08/what-is-serialization-in-java.html
Along with volatile variable, transient variables are some of the lesser known concept among majority of Java developers. It has special use during Se http://java67.blogspot.com/2012/08/what-is-transient-variable-in-java.html
volatile variable is a tricky concept to understand. Since its not a vis-a-vis alternative or replacement of synchronized keyword or locks, Java devel http://java67.blogspot.com/2012/08/what-is-volatile-variable-in-java-when.html
There are multiple ways to loop through ArrayList in Java, depending upon whether you want to loop through all elements or only some, you can either u http://java67.blogspot.com/2012/08/how-to-traverse-iterate-or-loop-ArrayList-in-java-examp...
In this article, we are comparing two of the most common Collection classes HashSet and HashMap in Java. Fundamental difference between HashSet and Ha http://java67.blogspot.com/2012/08/difference-between-hashset-and-hashmap.html
Spring AOP and MVC notes(material) by Mr.SomaSekhar Reddy sir from NareshiTechnologies, Ameerpeta, Hyderabad.AOP(Aspect Oriented Programming) and MVC( http://javabynataraj.blogspot.in/2014/09/spring-aop-mvc-notes-by-mrsekhar-sir.html
HashMap is a class from java.util package and extends AbstractMap, implements Map,Cloneable and Serializable interfaces. HashMap contains Key,Value pa http://javabynataraj.blogspot.in/2014/09/javautilhashmap-in-detail-with-program.html
Singleton Design patter is a darling pattern of Java developers. Despite all its shortcoming of global state and testability issue, it is still one of http://java67.blogspot.com/2012/08/what-is-singleton-pattern-in-java.html
NoClassDefFoundError is the most dreaded error for any Java programmer which comes because a class which was available during compile time is not avai http://java67.blogspot.com/2012/08/what-is-noclassdeffounderror-in-java.html
Hashtable and HashMap are two of the most fundamental classes from Java Collections Framework. They both implement Map interface, earlier Hashtable us http://java67.blogspot.co.uk/2012/08/5-difference-between-hashtable-hashmap-Java-collectio...
Java beginners often confused between ConcurrentHashMap and HashMap. They tend to use CHM even when its not required and they use HashMap where its no http://java67.blogspot.com/2012/08/difference-between-hashmap-and-concurrentHashMap-java-c...
Multi-threading and Thread basic concepts are integral part of any Java JEE interviews. This article contains some of the good questions from various http://java67.blogspot.com/2012/08/5-thread-interview-questions-answers-in.html
Coding questions are most important part of any programming job interview. Going into interviews, without doing enough coding or rather solving progra http://java67.blogspot.com/2012/08/10-java-coding-interview-questions-and.html
DurgaSoft is a software training and development company. Mr. Durga is one of the trainer for OCJP Certification course for the students who are inter http://javabynataraj.blogspot.in/2014/07/durgasoft-ocjpscjp-notes-part-ii.html
Mr.Durga is a famous faculty in Hyderabad. He teaches the core java for the beginners and also will give the training for the OCJP(SCJP) exam. The way http://javabynataraj.blogspot.in/2014/07/durgasoft-scjp-notes-part-i-download.html
Spring IOC and DAO modules full notes by Mr.SomaSekhar Reddy from Naresh i Technologies, Opposite to Satyam Theatre,Ameerpeta, Hyderabad.Students used http://javabynataraj.blogspot.in/2014/08/spring-ioc-dao-notes-by-sekhar-sir.html
Download Spring ORM notes by Sekhar sir pdf file contains all the topics of ORM module with example programs. Best material from Sekhar sir. http://javabynataraj.blogspot.in/2014/09/download-spring-orm-notes-by-sekhar-sir.html