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What is Externalizable interface?
Externalizable is an interface which have two methods readExternal and writeExternal. These methods give you a control over the serialization mechanism.
Therefore if your class executes this interface, you can customize the serialization process by executing these methods.
public class TreeTest { public static void main(String args[]) { Tree t = new Tree (); System.out.println("Populating"); t.insertItem(1); t
Struts Framework gives the functionality to validate the form data. It can be use to authenticate the data on the users browser as well as on the server side. Struts Framework emit
logical operators
Messaging is a method of communication among software components or applications. A messaging system is a peer-to-peer facility: A messaging client can send messages to, and receiv
Difference between Hash Map and Hash Table? The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and allows nulls. (HashMap allows null values
THE FOLLOWING PROGRAM SHOULD BE JAVA IN ECLIPSE Minimal Spanning Tree Decreasing Edge Dismissal Reverse-delete algorithm. Develop an implementation that computes the MST as fol
What are the principle concepts of OOPS? Principle concepts upon that object oriented programming and design rest. They are: Abstraction: Abstraction refers to the act of
What is Bullseye explain with an example? This is a easy applet that draws a series of filled, concentric circles alternating red and white, instead a bullseye. import java.ap
Describe what is bytecode? It is an instruction set. It extends with class. 'javac' compiler translates the .java file into .class. JVM interprets bytecode.
State about the performance of java First versions of java were pretty slow. Java performance has gotten a lot better with aggressive just-in-time-compiler (JIT) techniques
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