February 2014

Java Hashmap tutorial

By | 2014-02-01T18:41:11+00:00 February 1st, 2014|Core Java|

Java HashMap HashMap is HashTable based implementation of Map. This is the reason why interviewer always ask for difference between HashMap and HashTable. HashMap is mostly equals to HashTable except below two differences. HashMap is unsynchronized while HashTable is synchronised. HashMap permits null while HashTable doesn’t. […]

January 2014

December 2013

Transient vs Static variable java

By | 2013-12-29T07:01:22+00:00 December 29th, 2013|Core Java|

Here i will show you what is the difference between Static and Transient. In any way these two things are completely different with different scope but people use to ask me this question every time so i am mentioning it here. For previous Serialization articles click here(Pat I) and here(Part II). […]

March 2013

February 2013

List collection tutorial for Java Beginners

By | 2017-07-09T12:13:02+00:00 February 16th, 2013|Core Java|

Here we will learn about the List interface and different implementation of it in details. List Interface which is in java.util package is a subtype of java.util.Collection Interface. List Interface Salient Point It is a part of java.util package. It is a subtype of java.util.Collection Interface List is an Ordered Collection. Means elements of List can be [...]

Set Collection Tutorial for Java Beginners

By | 2017-07-09T12:13:58+00:00 February 16th, 2013|Core Java|

Set is a part Java Collection Framework. Set is an Interface in java.util package. It implements Collection Interface. Important Points related to Set It doesn’t contain duplicate elements. Some Set implementations have restriction on NULL element. […]