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Describe Polymorphism?
Polymorphism can be referred as one name many forms. It's the ability of methods to behave differently, depending upon object who is calling it. Key features of Polymorphism are:
Allows by using one interface for multiple implementations.
Method Overloading is supported: Multiple methods with same name however different formal argument.
Method Overridden is supported: Multiple methods have same name, same return type and same formal argument list.
How to Returning Multiple Values From Methods ? It is not probable to return more than one value from techniques. You cannot, for example, return the licensePlate, speed and m
Differentiate Local and Global Variables? Local variables are the variables have limited scope although global have bigger scope Local variables are not accessed through others
Question: (a) Explain the event handling mechanism using a 'JComboBox' as example. Your answer must clearly indicate the event source, event object and event listener. Also
How many bits are we used in Unicode, ASCII, UTF-16, and UTF-8 characters?
JavaServer Faces (JSF) framework : JavaServer Faces is a new framework for creating Web applications using Java. JSF gives you with the following main features: Basic us
memory allocation of local variable
What are the different types of messages available in the JMS API? Ans) Message, TextMessage, BytesMessage, StreamMessage, ObjectMessage, MapMessage are the dissimilar messages
Different modules in spring framework are:- a) The Core container module b) AOP module (Aspect Oriented Programming) c) Application context module d) JDBC abstractio
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What are the advantages that Java's layout managers provide over traditional windowing systems ?
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