Factory pattern comes from creational design pattern category.main objective of this pattern is to instantiate an object and Factory pattern interface is responsible for creating objects but the sub-classes desides which class to instantiate. Im going to start with a simple example.Suppose an application asks for entering the name and sex of a person. If the sex is Male (M), it displays welcome message saying Hello Mr. <Name> and if the sex is Female (F), it displays message saying Hello Ms <Name>. First Im going to create a Person class.. public class Person { public String name; public String gender; public String getName() { return name; } public String getGender() { return gender; } } we have 2 sub classes which will print welcome messages public class Male extends Pers