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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?
After refactor the main class to become abstract class, I want to move test method from tset clas of main class to subclass, how to do that?
At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes
INTRODUCTION Mobile computing is everywhere. Even as an increasing population of the world are now using mobile phones, and mobile phone (or smartphone) applications, there is a
i need help i hav done the gui part of my project and some simple symbols but to display some complex symbols like integration and all but it shud be clear with lower and upper lim
Normal 0 false false false EN-US X-NONE X-NONE
What is the use of Wrapper class You can create an object of Wrapper class using a String or a primitive data type Integer num = new Integer (4); or Integer num = n
Determine the Java Compiler Structure Source code for every class is in a .java file. Compile every class to produce -.class? file. Sometimes, multiple .class files are pack
I am having an combox box and values are retrieved from the database having inputs and labels i want to created the dynamic form accroding to user input on combox box values
Explain what is constructors ? It is frequent the case in which overloaded techniques are essentially the similar except that one supplies default values for a few of the argum
Question: (a) To be considered object-oriented(OO), a language should support abstraction, encapsulation, inheritance and polymorphism. Explain briefly each of the terms in
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