抽象工廠模式(1)，Java自學

public class Square implements Shape {
@Override
public void draw() {
System.out.println("Inside Square::draw() method.");
}
}


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public class Circle implements Shape {
@Override
public void draw() {
System.out.println("Inside Circle::draw() method.");
}
}


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public interface Color {
void fill();
}


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public class Red implements Color {
@Override
public void fill() {
System.out.println("Inside Red::fille() method.");
}
}


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public class Green implements Color {
@Override
public void fill() {
System.out.println("Inside Green::fille() method.");
}
}


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public class Blue implements Color {
@Override
public void fill() {
System.out.println("Inside Blue::fille() method.");
}
}


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public abstract class AbstractFactory {
abstract Shape getShape(String shape);
abstract Color getColor(String color);
}


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public class ShapeFactory extends AbstractFactory {
@Override
Shape getShape(String shape) {
if (shape == null) {
return null;
}
shape = shape.toLowerCase();
switch (shape) {
case "circle":
return new Circle();
case "rectangle":
return new Rectangle();
case "square":
return new Square();
default:
return null;
}
}
@Override
Color getColor(String color) {
return null;
}
}


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public class ColorFactory extends AbstractFactory {
@Override
Shape getShape(String shape) {
return null;
}
@Override
Color getColor(String color) {
if (color == null) {
return null;
}
color = color.toLowerCase();
switch (color) {
case "red":
return new Red();
case "blue":
return new Blue();
case "green":
return new Green();
default:
return null;
}
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![抽象工廠模式(1)，Java自學_程序員](https://s5.51cto.com/images/20210918/1631912074529259.jpg)


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