Illustrate inheritance and composition?, The ' is a ' relationship is use...

The ' is a ' relationship is used with inheritance and ' has a ' relationship is used with composition . Both composition and inheritance allow you to perform sub-objects in

Pessimistic and Optimistic concurrency control?,

What is role of action class, An Action Class performs a role of an adapter...

An Action Class performs a role of an adapter among the contents of an incoming HTTP request and the corresponding business logic that should be implemented to process this request

Pebble merchant., there is a pebble merchant. he sells the pebbles,that are...

there is a pebble merchant. he sells the pebbles,that are used for shining the floor.his main duty is to take the length of the room side but he sometines mistakes doing that and m

What is color in awt, What is Color in AWT? Color is a class in the AWT...

What is Color in AWT? Color is a class in the AWT. Individual colors such as red or mauve are examples of this class, java.awt.Color. Be sure to import it if you want to use ot

What is white space explain proper use of white space java, What is White S...

What is White Space? explain proper use of white space in java? White space consists mainly of the space character in which you generates through hitting the space bar on your

Implement a java class, Your first task is to implement the Movie class to ...

Your first task is to implement the Movie class to store all the relevant information on a single DVD Movie, including its catalog number, title, year of release, rating, rental pe

State about the garbage collection, Explain garbage collection. Java us...

Explain garbage collection. Java uses garbage collection to free the memory. By cleaning those objects which is no longer reference by any of the program. Step involve in clean

String concatenation and comparison, String concatenation and comparison ...

String concatenation and comparison public class StringTest { public static void main(String[] args) { int i = 4; int j = 5; System.out.println ("Hello" + i); // wi

Describe the benefits of threads, Question 1: a) What is an "Operating...

Question 1: a) What is an "Operating System"? b) Describe the four main computer system components. c) Describe and compare "Parallel Systems" and "Distributed Systems