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Question:
(a) Java does not support multiple inheritance but does provide the concept of ‘interface'. Explain how interfaces can help a programmer to implement multiple inheritance in their programs. Explain with suitable Java examples.
(b) What is an abstract class in Java? Describe the importance of implementing these classes in programs. Illustrate with an example of your own.
(c) Show the Java approach to event processing by explaining how event handling works in Java. Use an example to support your answer.
(d) Describe what is a ‘Listener' in Java using an appropriate example?
Explain the Three Benefits of Access Protection ? Access protection has three major benefits: 1. It permits you to enforce constraints on an object's state. 2. It gives a si
Modify both of the above clients (to write separate clients) to extract the exchange rate from a live web service that performs currency conversion. You can choose a Java or a .NET
How can you define a readable program? A program that is easy to read & understand also easy to maintain and enhance. Readability is the ease in that text can be read and under
Exercise 1) Lets start by query example in SPARQL: QUERY: What are the school's names that belong to the "local authority district" 00AA? NOTE 1: "Authority districts" divide UK i
Explain data entry issues? DATA ENTRY: There is new data entered every day. New customers are added every day. Some of the data entry needs the manual entry within computer s
YES. JSP technology is extensible by the development of custom actions, or tags, which are encapsulated in tag libraries. #question..
Having trouble with a lab, need to
A socket is interaction channel, which facilitates inter-process communication. A socket is an endpoint for interaction. There are two types of sockets, dependin
how to write aprogramm that calculates gross pay, taxes, and net pay for both hourly and commission employees. It will then display those results to the screen
Explain Animate gifs? We can save 16 gif images of the previous instance in a single file in the form of an animated gif, and then used it in a regular tag to display a movi
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