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How can we use Observer and Observable ?
What type of operations takes place inside Microprocessors Building Blocks? Enlist them along with brief description. Bus Interface Unit: The bus interface unit is the part o
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
Explain java flow control ? if else else if while for do while switch case break continue goto is a reserved word.
What interface must an object implement before it can be written to a stream as an object? Ans) An object must execute the Serializable or Externalizable interface before i
What are the role of Keywords in java? Keywords are identifiers such as public, static and class in which have a special meaning inside Java source code and outside of comments
I am having an combox box and values are retrieved from the database having inputs and labels i want to created the dynamic form accroding to user input on combox box values
You are to write a Java console application, following the Software Life Cycle model, which will read personnel records from a text file and store them in a data structure. One li
You can now implement the main program with its user interface for this assignment in the class MovieBrowse. This will provide a simple, command-line, interactive interface to prov
Liferay Especialist and Java Programmer Project Description: We require to make a full functional Portal with online tools. JSF, Java, Portlets, Skills required: CSS
Project Description: I want to create similar site: fifacointrader I want similar site like fifacointrader.com Skills required are HTML, Java, PHP, Website Design, Wordpre
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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