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How can we use Observer and Observable ?
We can get the values in the action classes by using data.getParameter("variable name described in the velocity page");
I want FitLIFE app for Android, IOS, Windows Project Description: Hello, I want to develop an app for Android, IOS and Windows Phone. This app will be work with open source B
Explain Drawing Rectangles in java ? Drawing rectangles is easy. Begin with a Graphics object g and call its drawRect() method: public void drawRect(int x, int y, int width, i
JRMP(java remote method protocol)
List down the names of two array techniques available in JavaScript. The two techniques thata rae available in java script is: 1. sort( ) [sorts elements within alphabetical
How to Begin a Variable Name with a Number? If you need to starts a variable name along with a digit, prefix the name you'd like to have (e.g. 8ball) along with an underscore,
The series of steps followed by an application is known its life cycle. A JSF application typically follows six steps in its life. 1. Restore view phase 2. Apply request valu
If there exist multiple conditions, the switch statement is suggested. It is because only one expression gets evaluated depending on which control jumps directly to the respective
What are the parts of website design? Parts of web design: There are in 3 types of elements for web design and below are there names: 1. Navigation scheme 2. Overall look and
What is a Relational Database? Give the names of any three RDBMS software? Database consist of two or more then two tables are called Relational database. Oracle dabatbase S
Objects which subclass the Observable class maintains a list of the observers. Whenever an Observable object is updated it invokes the update() method of each of its observers to report the observers that the state has been changed . The Observer interface is implemented by objects which observe Observable objects.
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