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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.
Can we use the constructor, instead of init(), to initialize servlet? Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you sho
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i am to find 75% of i clicker score.Each correct answer is worth 2points and an incorrect 1point. Express grade as a percentage (i.e the max is 100%). e.g 1 no i clicker question
What is the role of fonts in java explain with example? You've already seen one instance of drawing text in the HelloWorldApplet program of the last chapter. You call the drawS
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differentiate between states and behaviors of n object
Need software to print bills on A4 paper in the format provided. The details are shown below - 1. Serially generated Invoice Number. 2. Appropriate fields in the invoice have
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