public interface Shape{
void draw();
}
//Concrete classes
public class Rectangle implements Shape{
@Override
public void draw(){
System.out.println("In the Rectangle class.");
}
}
public class Square implements Shape{
@Override
public void draw(){
System.out.println("in the Square class.");
}
}
public class Circle implements Shape{
@Override
public void draw(){
System.out.println("In the Circle class");
}
}
//interface colors
public interface Color{
void fill();
}
public class Red implements Color{
@Override
public void fill(){
System.out.println("In Red class.");
}
}
public class Green implements Color{
@Override
public void fill(){
System.out.println("In Green class");
}
}
public class Blue implements Color{
@Override
public void fill(){
System.out.println("In Blue class.");
}
}
public abstract class AbstractFactory{
abstract Color getColor(String color);
abstract Shape getShape(String shape);
}
public class ShapeFactory extends AbstractFactory{
@Override
public Shape getShape(String shapeType){
if(shapeType == null){
return null;
}
if(shapeType.equalsIgnoreCase("CIRCLE")){
return new Circle();
}else if(shapeType.equalsIgnoreCase("RECTANGLE")){
return new Rectangle();
}else if(shapeType.equalsIgnoreCase("SQUARE")){
return new Square();
}
return null;
}
@Override
Color getColor(String color){
return null;
}
}
public class colorFactory extends AbstractFactory{
@Override
public Shape getShape(String shapeType){
return null;
}
public getColor(String color){
if(color == null){
return null;
}
if(color.equalsIgnoreCase("RED")){
return new Red();
}else if(color.equalsIgnoreCase("GREEN")){
return new Green();
}else if(color.equalsIgnoreCase("BLUE")){
return new Blue();
}
return null;
}
}
public class FactoryProducer{
public static AbstractFactory getFactory(String choice){
if(choice.equalsIgnoreCase("SHAPE")){
return new ShapeFactory();
}else if(choice.equalsIgnoreCase("COLOR")){
return new colorFactory();
}
return null;
}
}
//driver
public class AbstractFactoryT1{
public static void main(String[] args){
AbstractFactory factory = FactoryProducer.getFactory("SHAPE");
Shape shape1 = factory.getShape("CIRCLE");
shape1.draw();
Shape shape2 = factory.getShape("RECTANGLE");
shape2.draw();
Shape shape3 = factory.getShape("SQUARE");
shape3.draw();
AbstractFactory color = FactoryProducer.getFactory("COLOR");
Color color1 = color.getColor("GREEN");
color1.fill();
Color color2 = color.getColor("RED");
color2.fill():
Color color3 = color.getColor("BLUE");
color3.fill();
}
}