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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.
What Can an Applet Do? An applet can: • Draw pictures on a web page • Create a new window and draw in it. • Play sounds. • Receive input from the user by the keyboard or
A Scrollbar is a Component while Scroll Panel is a Container. A Scroll Panel handles its own events and performs its own scrolling.
using polymorphism to write a program to display digital clock
Action mapping having all the deployment information for a particular Action bean. This class is to verify where the results of the Action will be sent once its processing is done.
Explain what is Naming Applets in java applets? You can give an applet a name by using the NAME attribute of the APPLET element. This allows communication between different app
how to create overloded method?
Difference between the File and Random Access File classes? Ans) The File class encapsulates the files and directories of the local file system. The Random Access File class giv
Interface to calculate carbon foot print
This project simulates a remote procedure call on a client-server architecture. You will create both the client and the server. The server will maintain a linked list. It must N
As registered nurses, we often wonder "am I responsible for the L.P.N's and the C.N.A. assigned on my floor. Will I be blamed if someone makes an error or if someone gets hurt? N
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