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Commit 8ab5fe1

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🏭 Pattern Factory
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‎README.md‎

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}
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```
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# Pattern Factory
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Factory Pattern is one of the Creational Design pattern and it's widely used in JDK as well as frameworks like
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Spring and Struts.
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This pattern is used when we have a super class with multiple sub-classes and based on the input, we need to return one of the sub-class.
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```java
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import com.factory.FactoryClass ; //The factory class
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import com.factory.PC; //sub-class
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import com.factory.Server; //sub-class
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//PC and Server classes extend from Computer.
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public static void main(String[] args){
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FactoryClass fc = new FactoryClass();
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Computer comp1 = fc.getComputer("PC",16,499,4.3);
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System.out.println(comp1);
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Computer comp2 = fc.getComputer("Server",30,900,9);
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System.out.println(comp2);
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}

‎com/factory/Computer.java‎

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package com.factory;
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/**
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* Created by sdmg15 on 18/03/17.
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*/
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public abstract class Computer {
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public abstract String getRam();
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public abstract String getCpu();
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public abstract String getHdd();
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@Override
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public String toString(){
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return "Config :: RAM = " + this.getRam() + " CPU = " + this.getCpu() + " HDD = " + this.getHdd();
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}
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}

‎com/factory/FactoryClass.java‎

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package com.factory;
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/**
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* Created by sdmg15 on 18/03/17.
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*/
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public class FactoryClass {
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public static Computer getComputer(String c, String ram, String hdd, String dd){
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if("PC".equalsIgnoreCase(c)) return new PC(ram,hdd,dd);
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else if("Server".equalsIgnoreCase(c)) return new Server(ram,hdd,dd);
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return null;
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}
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}

‎com/factory/PC.java‎

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package com.factory;
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/**
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* Created by sdmg15 on 18/03/17.
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*/
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public class PC extends Computer {
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private int ram;
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private double cpu;
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private int hdd;
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public PC(int ram,int hdd, double cpu){
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this.ram = ram;
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this.hdd= hdd;
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this.cpu = cpu;
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}
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public String getRam(){
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return this.ram;
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}
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public String getCpu(){
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return this.cpu;
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}
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public String getHdd(){
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return this.hdd;
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}
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}

‎com/factory/Server.java‎

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package com.factory;
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/**
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* Created by sdmg15 on 18/03/17.
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*/
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public class Server extends Computer{
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private int ram;
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private double cpu;
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private int hdd;
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public Server(int ram,int hdd,double cpu){
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this.ram = ram;
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this.hdd= hdd;
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this.cpu = cpu;
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}
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public String getRam(){
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return this.ram;
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}
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public String getCpu(){
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return this.cpu;
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}
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public String getHdd(){
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return this.hdd;
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}
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}

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