11일 차 다형성

class Shape {

protected int x, y;

public int getX() {

return x;

}

public void setX(int x) {

this.x = x;

}

public int getY() {

return y;

}

public void setY(int y) {

this.y = y;

}

@Override

public String toString() {

return "Shape [x=" + x + ", y=" + y + "]";

}

public Shape() {

}

public void draw() {

System.out.println("Shape draw");

}

};

class Rectangle extends Shape {

private int height, width;

public int getHeight() {

return height;

}

public void setHeight(int height) {

this.height = height;

}

public int getWidth() {

return width;

}

public void setWidth(int width) {

this.width = width;

}

@Override

public String toString() {

return "Rectangle [height=" + height + ", width=" + width + "]";

}

public Rectangle() {

// TODO Auto-generated constructor stub

}

public Rectangle(int height, int width) {

super();

this.height = height;

this.width = width;

}

public void draw() {

System.out.println("Rectangle draw");

}

}

class Triangle extends Shape {

private int base, height;

public int getBase() {

return base;

}

public void setBase(int base) {

this.base = base;

}

public int getHeight() {

return height;

}

public void setHeight(int height) {

this.height = height;

}

@Override

public String toString() {

return "Triangle [base=" + base + ", height=" + height + "]";

}

public Triangle() {

}

public Triangle(int base, int height) {

super();

this.base = base;

this.height = height;

}

public void draw() {

System.out.println("Triangle draw");

}

};

class Circle extends Shape {

private int radius;

public int getRadius() {

return radius;

}

public void setRadius(int radius) {

this.radius = radius;

}

@Override

public String toString() {

return "Circle [radius=" + radius + "]";

}

public Circle() {

}

public Circle(int radius) {

super();

this.radius = radius;

}

public void draw() {

System.out.println("Circle draw");

}

};

class Cylinder extends Shape {

public void draw() {

System.out.println("Cylinder draw");

}

}

public class ShapeTest {

private static Shape arrayOfShapes[];

public static void main(String[] args) {

// TODO Auto-generated method stub

init();

drawAll();

}

public static void init() {

arrayOfShapes = new Shape[4];

arrayOfShapes[0] = new Rectangle();

arrayOfShapes[1] = new Triangle();

arrayOfShapes[2] = new Circle();

arrayOfShapes[3] = new Cylinder();

}

public static void drawAll() {

for (int i = 0; i < arrayOfShapes.length; i++) {

arrayOfShapes[i].draw();

}

}

};