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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 is meant by semantic error? Occur although a statement executes and has an effect not intended by the programmer and Frequently times occur just in unusual & infrequent ci
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A mechanism for converting among string-based markup generated by JavaServer Faces UI components and server-side Java objects.
How many static initializers can you have ? As many as you want, but the static initializers and class variable initializers are implemented in textual order and may not refer
Liferay Especialist and Java Programmer Project Description: We require to make a full functional Portal with online tools. JSF, Java, Portlets, Skills required: CSS
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Interface to calculate carbon foot print
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1) Around : org.aopalliance.intercept.MethodInterceptor 2) Before : org.springframework.aop.BeforeAdvice 3) After : org.springframework.aop.AfterReturningAdvice 4) Throws
Wechat and SugarCRM Project Description: Seeking the partner able to develop wechat program to integrate with SugarCRM. Wechat Official Account able to perform some functi
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