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Design pattern: As you may look from the diagram given below, containers collect components. Sometimes you want to accumulate a container to another container. So, a container could be an element. Composite design pattern is used in GUI elements to achieve this. A composite object is an object, which have other objects. Composite design pattern manipulates composite objects just like you manipulate individual elements.
Model-View-Controller (MVC) is a design pattern put together to help control change. MVC decouples interface from business logic and data. ? Model: The model having the core of
What are wrapper classes? Java gives specialized classes corresponding to every of the primitive data types. These are known as wrapper classes. They are example: Integer, C
Explain try and catch exception in java? Why use exceptions instead of return values? 1. Forces error checking 2. Cleans up your code through separating the normal case from
What are synchronized methods and synchronized statements? Synchronized methods are methods that are used to control access to an object. A thread only implements a synchronize
What is the purpose to use the enableEvents() method?
For your project, you will be designing a payroll system for a company. The company will use the system to generate payroll reports based on different kinds of employees in the com
program t ofind area under the curve y=f(x) between x=a and x=b integrate y=f(x) between the limits a and b
i don''t need any code i need analysis and design only -i need 4 use cases - description - activity diagram -sequence diagram -class diagram - data base diagram
calculate the size of the tract of land by the size of an acre to get the number of acres.
java coding
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