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What is the difference between an Interface and an Abstract class?
An abstract class can have instance methods that execute a default behavior. An Interface can only declare constants and instance methods, but cannot execute default behavior and all methods are implicitly abstract.
An interface has all public members and no execution. An abstract class is a class which may have the usual flavors of class members (private, protected, etc.), but has some abstract methods.
An ActionForm is a JavaBean that extends org.apache.struts.action.ActionForm. ActionForm handles the session state for web application and the ActionForm object is automatically p
There are two significant bean lifecycle methods. The first one is setup which is called when the bean is loaded on to the container. The second method is the teardown method which
What is Mixing Data Types? As well as merging various operations, you can mix and match various numeric data types on the similar line. The program below uses both ints and dou
What are three ways in which a thread can enter the waiting state ?
Problem : Compiler Design - Limit the loops Rajni is a newbie to the programming and while learning the programming language he came to know the following rules: ???• Each
Project Description: We are looking to prepare an app which allows the user (a student or an expat in a new country) to select from a list of furniture items to prepare a packag
The Action Class is type of the Model and is a wrapper around the business logic. The purpose of Action Class is to change the HttpServletRequest to the business logic. To use the
Machines should have Java interpreter for the Java byte code to get implemented. Linking is a very simple process and this feature helps while developing applications. Java compile
Describe the Class or static Members ? A method or a field in a Java program could be declared static. That means the member belongs to the class rather than to an individual
Describe java operators? An operator is a symbol which operates on one or more arguments to generate a result. The Hello World program is so easy it doesn't use any operators,
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