Java Archive
Here is the list of Java Design Patterns. Each pattern is explained in detail with example and sample code. Hope you find this helpful. Creational Java Design Patterns Abstract Factory Builder Factory Method Prototype Singleton Structural Patterns
Being in IT industry for almost 15 years, I have come across some most important Core Java Interview questions, which are frequently asked in most of the interviews by MNCs. Based on my experience, I have tried to
Q: What are basic OOPS Concepts? A: – Inheritance : When a child class acquires all the methods and properties of parent class it is called inheritance. Java supports inheritance either using classes or interfaces. Encapsulation: In above class,
Lets see how we can sort our Employee objects using different criteria like id, name, salary. SortTest remains the main class that will perform creating and filling objects for us. This time employee class is plain old
In Java you can do sorting by implementing 2 interfaces 1) Comparable 2) Comparator Here we will see sorting example using Comparable Interface. As an example we will be sorting objects of Employee class. When using comaprable
Here I’m going to post a class that will extract all valid URLs from a web page. The example can be treated as a basic web crawler. My class uses “URLConnectionReader” provided by Sun Tutorial The class
In my last post I mentioned “Config Class”couple of times.. here you will see actual class and its usage. The class is very simple. We just need to provide proper path to config file we going to
It’s been too long, I didnt get time to post anything OpenSource. So here I am again with one simple class Database, to connect to MySQL in Java. You can use this class in 2 ways –
