We have different ways to iterate HashMap. Using keySet,entrySet by using Map.Entry we can do the iterations. as well as we can use for-each loops. http://javabynataraj.blogspot.in/2014/06/how-to-iterate-or-traverse-map-in-java.html
This article explains with an example, how to make CRUD operations using Spring MVC 4.0 RESTFul web services and AngularJS. http://www.programming-free.com/2014/07/crud-springmvc-restful-webservices-angularjs.html
Basics of threads, multi-threading, and Concurrency is core part of any Java interview including senior, junior, freshers and experienced. This list c http://javarevisited.blogspot.com/2014/06/how-to-create-custom-exception-in-java.html
an example of creating a site aimed for announcing future conferences on front-end development with the help of Webix and a Java-framework Struts 2 http://webix.com/blog/developing-a-basic-website-functionality-with-webix-and-struts-2/
Every Java program make heavy use of Collection framework. Collection classes are used to store huge number of data or value objects e.g. Employee, Or http://java67.blogspot.sg/2012/07/sort-list-ascending-descending-order-set-arraylist.html
This Java program demonstrate a way to copy elements from List to Set in Java. By using this technique, you can effectively convert a List to Set. http://java67.blogspot.com/2012/07/copy-elements-from-list-to-set-in-java-collection-examp...
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. For example, 371 is an A http://java67.blogspot.sg/2012/07/java-program-to-find-armstrong-numbers.html
This article explains how to print Fibonacci series in Java using for loop and recursion. Fibonacci series is a special mathematical series in which a http://java67.blogspot.sg/2012/07/java-program-fibonacci-series-with.html
Find Permutation and Combination of a String , such type of questions can be asked in the written round of the major tech giants like Amazon. http://javahungry.blogspot.com/2014/03/algorithm-to-find-permutations-of-string-using-recu...
We are sharing the best books for learning Java . If you are new to the java world then you should not miss out these books http://javahungry.blogspot.com/2014/02/best-books-for-learning-java-must-read.html