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premaseempremaseem
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step 1: Poor code (before applying abstract factory)
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Lines changed: 129 additions & 1 deletion

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‎pattern/src/com/premaseem/Client.java‎

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@link: https://premaseem.wordpress.com/category/computers/design-patterns/
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@copyright: 2018 Packt Publication
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*/
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import com.premaseem.icecreams.AmulChocolateIceCream;
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import com.premaseem.icecreams.AmulStrawberryIceCream;
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import com.premaseem.icecreams.DairyQueenChocolateIceCream;
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import com.premaseem.icecreams.DairyQueenStrawberryIceCream;
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import java.util.Scanner;
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public class Client {
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public static void main (String[] args) {
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System.out.println("Singleton cook example ");
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Scanner scan = new Scanner(System.in);
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System.out.println("Ice cream Abstract factory example ");
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System.out.println("Please enter the Brand of Ice cream ... ");
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System.out.println("Dairy Queen");
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System.out.println("Amul");
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String iceCreamBrand = scan.next();
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System.out.println("Please enter your ice cream flavor ... ");
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System.out.println("Strawberry");
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System.out.println("Chocolate");
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String iceCreamChoice = scan.next();
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// Family of similar products with different brands. ( Tight couple)
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DairyQueenStrawberryIceCream dairyQueenStrawberryIceCream =null;
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DairyQueenChocolateIceCream dairyQueenChocolateIceCream = null;
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AmulStrawberryIceCream amulStrawberryIceCream =null;
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AmulChocolateIceCream amulchocolateIceCream = null;
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// Sphegati code with if else ladder
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if (iceCreamBrand.equalsIgnoreCase("Amul")
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&& iceCreamChoice.equalsIgnoreCase("Strawberry")){
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amulStrawberryIceCream = new AmulStrawberryIceCream();
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}else if (iceCreamBrand.equalsIgnoreCase("Amul") &&
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iceCreamChoice.equalsIgnoreCase("Chocolate")){
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amulchocolateIceCream = new AmulChocolateIceCream();
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}else if (iceCreamBrand.equalsIgnoreCase("Dairy Queen")
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&& iceCreamChoice.equalsIgnoreCase("Strawberry")){
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dairyQueenStrawberryIceCream = new DairyQueenStrawberryIceCream();
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}else if (iceCreamBrand.equalsIgnoreCase("Dairy Queen") &&
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iceCreamChoice.equalsIgnoreCase("Chocolate")){
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dairyQueenChocolateIceCream = new DairyQueenChocolateIceCream();
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}
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// Ice cream of your choice is :
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System.out.print("Ice cream of your choice is ");
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if (amulStrawberryIceCream != null){
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System.out.println(amulStrawberryIceCream);
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}
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if (amulchocolateIceCream != null){
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System.out.println(amulchocolateIceCream);
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}
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if (dairyQueenStrawberryIceCream != null){
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System.out.println(dairyQueenStrawberryIceCream);
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}
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if (dairyQueenChocolateIceCream != null){
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System.out.println(dairyQueenChocolateIceCream);
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}
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}
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}

‎pattern/src/com/premaseem/icecreams/AmulChocolateIceCream.java‎

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package com.premaseem.icecreams;
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/*
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@author: Aseem Jain
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@title: Design Patterns with Java 9
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@link: https://premaseem.wordpress.com/category/computers/design-patterns/
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*/
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public class AmulChocolateIceCream {
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String brand = "Amul ";
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Integer cost = 3;
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Integer calories = 200;
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@Override
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public String toString () {
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return this.getClass().getSimpleName() + " of brand " + brand +
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"with calories " + calories + " and cost: $" + cost;
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}
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}

‎pattern/src/com/premaseem/icecreams/AmulStrawberryIceCream.java‎

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package com.premaseem.icecreams;
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/*
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@author: Aseem Jain
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@title: Design Patterns with Java 9
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@link: https://premaseem.wordpress.com/category/computers/design-patterns/
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*/
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public class AmulStrawberryIceCream {
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String brand = "Amul ";
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Integer cost = 2;
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Integer calories = 200;
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@Override
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public String toString () {
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return this.getClass().getSimpleName() + " with Calories: " + calories + " and cost: $" + cost;
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}
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}

‎pattern/src/com/premaseem/icecreams/DairyQueenChocolateIceCream.java‎

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package com.premaseem.icecreams;
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/*
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@author: Aseem Jain
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@title: Design Patterns with Java 9
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@link: https://premaseem.wordpress.com/category/computers/design-patterns/
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*/
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public class DairyQueenChocolateIceCream {
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String brand = "Dairy Queen ";
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Integer cost = 3;
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Integer calories = 200;
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@Override
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public String toString () {
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return this.getClass().getName() + " with " + calories + " and cost: $" + cost;
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}
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}

‎pattern/src/com/premaseem/icecreams/DairyQueenStrawberryIceCream.java‎

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package com.premaseem.icecreams;
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/*
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@author: Aseem Jain
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@title: Design Patterns with Java 9
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@link: https://premaseem.wordpress.com/category/computers/design-patterns/
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*/
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public class DairyQueenStrawberryIceCream {
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String brand = "Dairy Queen";
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Integer cost = 2;
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Integer calories = 200;
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@Override
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public String toString () {
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return this.getClass().getSimpleName() + " with Calories: " + calories + " and cost: $" + cost;
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}
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}

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