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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?
how to retrieve data from Excel file, and display that data in table on jsp page?
What is a local, member and a class variable? Variables declared within a method are "local" variables. Variables declared within the class i.e not within any methods are "m
There are four different parts by which autowiring can be done. ? byName ? constructor ? autodetect ? byType
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Why we Avoiding Short Circuits ? If you need all of your boolean expressions evaluated regardless of the truth value of each, then you can use & and | instead of && and ||. The
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Draw: loops through the list of cards drawing them in a single row starting from the screen position referred to by the 'x' and 'y' fields of the Hand class. You can limit the numb
Give an Examples of Access Protection ? This is how the Car class would almost certainly be written in practice. Remember that all the fields are now declared private, and the
How to Scaling Images in java applet? You can scale an image within a particular rectangle using this version of the drawImage() method: public boolean drawImage(Image img,
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