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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.
The state chart diagram given below defines the thread states. 1. Runnable - waiting for its turn to be picked for performing by the thread scheduler based o
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tag shows all the errors. iterates over ActionErrors request attribute.
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Service Oriented Architecture Service Oriented Architecture (SOA) is an evolution of the fundamentals governing a component based development. Component based development gives
What is difference between Design and System Architecture? System Architecture : It is structure of a product or procedure. Design: It is begin of the procedure of devel
Calculate the kilometer within an hour? class Car { String licensePlate = ""; // e.g. "New York 543 A23" double speed = 0.0; // in kilometers per hour doubl
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
Classes are attached into the JVM as they are referenced by name in a class that is already running in the JVM. So, how is the staring class loaded? The very first class is espec
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