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Observer pattern in Java is one of most used core Java pattern which has heavily used in JDK and outside of jDK in various frameworks like Spring, Struts and other Apache libraries. Observer pattern a...
Factory method design pattern in Java - Tutorial with Sample Code
Factory design pattern in Java one of the core design pattern which is used heavily not only in JDK but also in various Open Source framework such as spring, Struts and Apache along with decorator des...
Using String Resources
For quick string references, like a global string, you should try and use the string resource. You can set a string resource by opening the file in your project explorer located at values/strings.xml....
Using Android Checkboxes
In almost any settings window/screen you will probably need to use a check box, to "tick" something on or off. We are going to do some easy check boxes to help make a selection of what kind ...
Decorator Design Pattern Example in Java
Decorator design pattern is a prominent Core Java pattern heavily used in Java development Kit. Decorator pattern is used to enhance functionality of individual object at runtime which gives flexibili...
How to prepare Java Collection Interview questions
Java collection interview questions are core part of any java interview. Collection interview consists question on various collection classes like hashset, hashmap, linkedhashmap, arraylist, vector, l...
How to deal with Simple Cursor adapter
this tutorial is based on how to deal simple cursor adapter which is used to show or design the way to show the data in the listview.
Things to remember when overriding CompareTo method in Java
CompareTo method is defined in Comparable interface in Java and used to implement natural ordering of object.Implementing and overriding compareTo is neither too easy but not too difficult as well , t...
What is HashMap in Java, how it works
One of the best article aournd HashMap in Java, its a intervie discussion which coveres internals of hashMap , must read.
How to convert String to Integer to String in Java example
Converting string to integer and Integer to String is one of the basic tasks of Java and most people learned about it when they learn java programming. Even though string to integer and integer to str...