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Composite A composite IS A group of objects in which some objects may contain others, so that some objects represent groups and others re...

The intent of the FACADE pattern is to provide an interface that makes a subsystem easy to use. Facades often arise out of normal applicat...

AN OBJECT IS A client if it needs to call your code. For example, a rocket-simulation program might be designed to use rocket information ...

According to their intents: Interfaces  ADAPTER, FACADE, COMPOSITE, BRIDGE Responsibility  SINGLETON, OBSERVER, MEDIATOR, PROXY,...

SCJA Mini Mock Exam http://www.ejavaguru.com/scjafreemockexam.php#a1 SCJA Sun Certified Java Associate Mock Exams http://scja....

MVC is a design pattern It contains two models: MVC Model 1 MVC Model 2 Struts framework implements MVC Design Pattern. Struts can im...

lecture notes http://efe.ege.edu.tr/~sengonca/Projeyonetimi.html videos books http://efe.ege.edu.tr/~sengonca/ PMP Study Process h...

bubble sort vs quick sort http://www.youtube.com/watch?v=vxENKlcs2Tw bubble sort compares every adjacent element(something next to it)...

Also called FIFO anomaly. Usually, on increasing the number of frames allocated to a process virtual memory, the process execution is fast...

Reflection is a feature in the Java programming language. It allows an executing Java program to examine or "introspect" upon its...

Abstraction focuses on the outside view of an object (i.e. the interface) Encapsulation (information hiding) prevents clients from seein...

All the instance variables should be declared as private and public getter and setter methods should be provided for accessing the instance ...

Dynamic binding is a binding in which the class association is not made until the object is created at execution time. It is also call...

Static binding is a binding in which the class association is made during compile time. This is also called as Early binding

Destructor is an operation that frees the state of an object and/or destroys the object itself. In Java, there is no concept of destructor...

Constructor is an operation that creates an object and/or initialises its state.

superclass is a class from which another class inherits

Subclass is a class that inherits from one or more classes

Base class is the most generalised class in a class structure. Most applications have such root classes. In Java, Object is the base class...

Interface is an outside view of a class or object which emphasizes its abstraction while hiding its structure and secrets of its behaviour.

Abstract class is a class that has no instances. An abstract class is written with the expectation that its concrete subclasses will add to...

Polymorphism literally means taking more than one form. Inheritance, Overloading and Overriding are used to achieve Polymorphism in java ...

Inheritance is a relationship among classes, wherein one class shares the structure or behaviour defined in another class Inheritance is...

Encapsulation is the process of compartmentalising the elements of an abtraction that defines the structure and behaviour Encapsulation ...

Abstraction defines the essential characteristics of an object that distinguish it from all other kinds of objects Abstraction is way of...

ChatGPT 2. Interface Definition: An interface in Java is a reference type, similar to a class, that can contain only constants, method signa...

Object is an instance of a class

Class is a template for a set of objects that share a common structure and a common behaviour.

Introducing the Decorator Design Pattern http://www.youtube.com/watch?v=Xk8durvtiys&feature=channel&list=UL wrapper classes u...

Concrete class - Provides implementation for all its methods & also for methods from extended abstract classes or implemented interface...

Strategy Class can be an interface or an abstract class There are a set of classes which extend abstract class or implement interface S...

Intent Iterator Pattern provides a way to access the elements of an aggregate object sequentially without exposing its underlying representa...

Dependency is normally created when you receive a reference to a class as part of a particular operation / method. Dependency indicates th...

Dependency is a weaker form of relationship which indicates that one class depends on another because it uses it at some point of time On...

For instance, a flight class is associated with a plane class bi-directionally

In java when one class implements and interface it is called realization, the class realizes the interface. In UML modeling, a realizatio...

The generalization relationship is also known as the inheritance or "is a" relationship. When one class inherits or extends anot...

composition vs aggregation Composition is more restrictive. When there is a composition between two objects, the composed object canno...

Composition is a stronger variant of the "owns a" or association relationship composition is more specific than aggregation. It...

Aggregation is a variant of the "has a" or association relationship; aggregation is more specific than association. It is an as...

stereotypes are used to show how this element of a class is specialized 4.03_Stereotypes http://www.youtube.com/watch?v=g7O6R8loCss&...

Visibility To specify the visibility of a class member (i.e., any attribute or method) All the Visibility of a Class Members Are: ...

a class can be associated with itself

When two objects are associated, one object will be having a variable that points to the other object  Association is a relationship t...

object oriented software system usecase view(requirements of system) design view process view implementation view deployment view

UML,unified modelling language visualizing,constructing and documenting all parts of system

UML Views of the World Use Case Model Static Models Interaction Models Use Case Model use case diagram use cases ...

RUP presents Software Architecture 4+1 views logical view implementation view use-case view process view deployment view RUP ,ra...

Define UML? Unified Modeling Language, a standard language for designing and documenting a system in an object-oriented manner It has...