Java Basics-Factory mode

Interface fruit{//defines a fruit interface public void eat ();//Eat Fruit}class Apple implements fruit{public void Eat () {System.out.println ("* * Eat apples. ") ;}}; Class Orange implements Fruit{public void Eat () {System.out.println ("* * * eat oranges. ") ;}}; Class factory{//defines the factory class public static Fruit getinstance (String className) {Fruit F = null, if ("Apple". Equals (ClassName)) {// Determine if you want the subclass F = new Apple () of Apple;} if ("Orange". Equals (ClassName)) {//Determine if you want an orange subclass F = new Orange ();} return f;}; public class Interfacecasedemo05{public static void Main (String args[]) {Fruit f = factory.getinstance (Args[0]);//Instantiate interface I F (f!=null) {//To determine if the instance is F.eat ();}};

　　

Java Basics-Factory mode