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ShanukaPrabodhaShanukaPrabodha
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Implementing Abstract-Facory design pattern
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‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/AbstractFactory.java‎

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package design.pattern.abstractFactory;
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public abstract class AbstractFactory {
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public abstract Color getColor(String type);
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public abstract Shape getShape(String type);
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/AbstractFactoryPatternDemo.java‎

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package design.pattern.abstractFactory;
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public class AbstractFactoryPatternDemo {
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private static final String SHAPE = "SHAPE";
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private static final String CIRCLE = "CIRCLE";
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private static final String RECTANGLE = "RECTANGLE";
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private static final String SQUARE = "SQUARE";
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private static final String COLOR = "COLOR";
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private static final String RED = "RED";
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private static final String GREEN = "GREEN";
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private static final String BLUE = "BLUE";
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public static void main(String[] args) {
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AbstractFactory shapeFactory = FactoryProducer.getFactory(SHAPE);
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Shape shape = shapeFactory.getShape(CIRCLE);
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shape.draw();
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FactoryProducer.getFactory(SHAPE).getShape(RECTANGLE).draw();
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FactoryProducer.getFactory(SHAPE).getShape(SQUARE).draw();
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FactoryProducer.getFactory(COLOR).getColor(RED).fill();
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FactoryProducer.getFactory(COLOR).getColor(GREEN).fill();
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FactoryProducer.getFactory(COLOR).getColor(BLUE).fill();
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}
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/Blue.java‎

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package design.pattern.abstractFactory;
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public class Blue implements Color{
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@Override
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public void fill() {
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System.out.println("Inside the Blue:fill() method");
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}
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/Circle.java‎

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package design.pattern.abstractFactory;
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public class Circle implements Shape{
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@Override
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public void draw() {
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System.out.println("Inside the Circle:draw() method");
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}
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/Color.java‎

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package design.pattern.abstractFactory;
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public interface Color {
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void fill();
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/ColorFactory.java‎

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package design.pattern.abstractFactory;
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public class ColorFactory extends AbstractFactory{
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@Override
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public Color getColor(String color) {
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if(color.equalsIgnoreCase("RED")){
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return new Red();
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}
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else if(color.equalsIgnoreCase("GREEN")){
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return new Green();
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}
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else if(color.equalsIgnoreCase("BLUE")){
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return new Blue();
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}
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else{
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return null;
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}
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}
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@Override
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public Shape getShape(String type) {
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return null;
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}
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/FactoryProducer.java‎

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package design.pattern.abstractFactory;
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public class FactoryProducer {
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public static AbstractFactory getFactory(String choice){
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if(choice.equalsIgnoreCase("SHAPE")){
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return new ShapeFactory();
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}
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else if(choice.equalsIgnoreCase("COLOR")){
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return new ColorFactory();
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}
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else{
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return null;
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}
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}
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/Green.java‎

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package design.pattern.abstractFactory;
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public class Green implements Color{
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@Override
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public void fill() {
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System.out.println("Inside Green:fill() method");
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}
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}

‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/Rectangle.java‎

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package design.pattern.abstractFactory;
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public class Rectangle implements Shape{
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@Override
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public void draw() {
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System.out.println("Inside the Rectangle:draw() method");
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}
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}
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‎Basics/Design Pattern/Design Pattern-contd/Abstract-Factory pattern/abstractFactory/Red.java‎

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package design.pattern.abstractFactory;
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public class Red implements Color{
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@Override
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public void fill() {
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System.out.println("Inside Red:fill() method.");
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}
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}

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