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Question:
(a) Explain the importance of abstract classes in Java with an appropriate example.
(b) Explain what is meant by an interface in Java? Use a simple example to illustrate your answer.
(c) A GUI may contain text-fields, buttons, and other labels. A button usually triggers an event on the GUI. Explain the different processes in registering an event and handling the action performed by the button in Java.
(d) Write the code for a GUI which will allow a user to enter two numbers and then compute the product by clicking on a button. The result can be displayed in a text-field or as a label on the GUI.
Explain function arguments with the help of an example? Arguments on a function are comma separated list of data enclosed within braces. It describes interface among the web pa
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Sal?s Pizza wants to install a system to record orders for pizza and Buffalo chicken wings. When regular customers call Sal?s Pizza on the phone, they are asked their phone number.
How is method overriding different from method overloading? Overriding involves the creation of two or more concepts with the same name and same signature in different classes
How to Begin Java
State the Java Programmer Efficiency Faster Development Building an application in Java takes about 50% less time than in C or C++. So, faster time to market Java is said to
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Advantages offered by SOA Splits down the silos of data, functionalities, and applications into enterprise services. Adapts an application to changing business requirements
What are Access Specifiers available in Java? Java has four access specifiers, which are enlisted below: Public: public methods, classes and fields can be accessed by ever
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