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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.
A loop is a set of commands which executes repeatedly till a denoted condition is met. JavaScript supports two loop statements: for & while. Additionally, you can employ the break
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How to initialize array in java ? Individual elements of an array are referenced through the array name and through an integer that represents their position in the array. The
Type casting defines treating a variable of one type as though it is another type. When up casting primitives as given below from left to right, automatic conversion happens. Bu
Describe life cycle of thread. Threads follow the single flow of control. A thread is execution in a program. The life cycles of threads are listed below: Newborn state: A
What is the difference among session scope and request scope when saving formbean? Ans) When the scope is request, the values of formbean would be there for the current request.
how to write a program to assign value of variable age and print if person is major.
Manage valuable resources recycle and wisely them where possible, serialization cost and minimize network overheads, and optimize all your database functions. 1. Recycle and man
I need Liferay Especialist Project Description: We want a JAVA + JSF + Portlets expert Liferay expertise is needed Big Data and Online Tools + Multilingual Portal & Websit
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