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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?
Pick your favorite geometry formula (e.g., area of a square, perimeter of a triangle …) and implement it in Java. Demonstrate your code compiles and runs without issue (You can use
What is the difference among session scope and request scope when saving formbean? Ans) When the scope is request, the values of formbean would be there for the current request.
The confidentiality and privacy may be accomplished through encryption. Encryption may be: Private-key or symmetric: This is based on a single key. This needs the sender and the
Explain Identifiers in Java ? Identifiers are the names of variables, classes, methods, packages and interfaces. Unlike literals they are not the things themselves, only ways o
In the airplane program, you may have noticed that the loading of each image appears to be jerky, erratic, or slow, and that the URL for each image flickers in the status bar each
What is the difference between instance and object of a class? Few says both are same, then why java kept both the words for same thing?
Don''t know how to write this...can anyone help me?
Explain what is Local Variable ? Declaring variables (using the var keyword) inside a function forms them local. They are available only inside the function and hold no meaning
An application or procedure that produces and/or receives messages.
In JavaScript, what is event handling? What are the two categories of events? In java script we could capture events on do a few operation on the basis of which particular even
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