Task 5 — Интерфейсы и абстрактные классы

package Task5;
import java.math.*;

public class Circle extends Shape {
    protected double radius;
    public Circle(){
        this.filled = false;
        this.color = "blue";
        this.radius = 1;
    }
    public Circle(double radius){
        this.filled = false;
        this.color = "blue";
        this.radius = radius;
    }
    public Circle(double radius, String color, boolean filled){
        this.radius = radius;
        this.color = color;
        this.filled = filled;
    }

    public double getRadius() {
        return radius;
    }
    public void setRadius(double radius){
        this.radius = radius;
    }
    @Override
    public double getArea() {
        return Math.PI*radius*radius;
    }
    @Override
    public double getPerimeter() {
        return 2*Math.PI*radius;
    }
    @Override
    public String toString() {
        return "Shape: circle radius: "+this.radius+", color: "+this.color+" Plosh "+getArea();
    }
}

package Task5;

public interface Movable {
    void moveUp();
    void moveDown();
    void moveLeft();
    void moveRight();
}

package Task5;

public class MovableCircle implements Movable{
    private int radius;
    MovablePoint center;
    public  MovableCircle(int x, int y, int xSpeed, int ySpeed, int radius){
        this.center = new MovablePoint(x, y, xSpeed, ySpeed);
        this.radius = radius;
    }
    @Override
    public String toString() {
        return "MovableCircle{" +
                "radius=" + this.radius +
                ", center=" + this.center.y + " "+this.center.ySpeed+" "+ this.center.xSpeed+" "+ this.center.x+
                '}';
    }
    @Override
    public void moveUp() {
        MovablePoint ret = this.center;
        ret.y += this.center.ySpeed;
    }
    @Override
    public void moveDown() {
        MovablePoint ret = this.center;
        ret.y -= this.center.ySpeed;
    }
    @Override
    public void moveLeft() {
        MovablePoint ret = this.center;
        ret.x += this.center.xSpeed;
    }
    @Override
    public void moveRight() {
        MovablePoint ret = this.center;
        ret.x -= this.center.xSpeed;
    }
}

package Task5;

public class MovablePoint implements Movable {
    int x;
    int y;
    int xSpeed;
    int ySpeed;
    public  MovablePoint(int x, int y, int xSpeed, int ySpeed){
        this.x=x;
        this.y=y;
        this.xSpeed=xSpeed;
        this.ySpeed=ySpeed;
    }

    @Override
    public String toString() {
        return "MovablePoint{" +
                "x=" + this.x +
                ", y=" + this.y +
                ", xSpeed=" + this.xSpeed +
                ", ySpeed=" + this.ySpeed +
                '}';
    }

    @Override
    public void moveUp() {
        this.y +=ySpeed;
    }

    @Override
    public void moveDown() {
        this.y -= ySpeed;
    }

    @Override
    public void moveLeft() {
        this.x -= xSpeed;
    }

    @Override
    public void moveRight() {
        this.x +=xSpeed;
    }
}

package Task5;

public class MovableRectangle implements Movable{
    MovablePoint topLeft;
    MovablePoint bottomRight;
    public MovableRectangle(int x1, int y1, int x2, int y2, int xSpeed, int ySpeed){
        this.topLeft = new MovablePoint(x1, y1, xSpeed, ySpeed);
        this.bottomRight = new MovablePoint(x2, y2, xSpeed, ySpeed);
    }
    public void proverkX(){
        if (this.topLeft.xSpeed != this.bottomRight.xSpeed){
            MovablePoint terx;
            if(this.topLeft.xSpeed > this.bottomRight.xSpeed){
                terx = this.topLeft;
                terx.xSpeed -= this.bottomRight.xSpeed;
                this.topLeft.xSpeed = this.bottomRight.xSpeed;
            }else{
                terx = this.bottomRight;
                terx.xSpeed -= this.topLeft.xSpeed;
                this.bottomRight.xSpeed = this.topLeft.xSpeed;
            }
        }
    }
    public void proverkY(){
        if (this.topLeft.ySpeed != this.bottomRight.ySpeed){
            MovablePoint tery;
            if(this.topLeft.ySpeed > this.bottomRight.ySpeed){
                tery = this.topLeft;
                tery.ySpeed -= this.bottomRight.ySpeed;
                this.topLeft.ySpeed = this.bottomRight.ySpeed;
            }else{
                tery = this.bottomRight;
                tery.ySpeed -= this.topLeft.ySpeed;
                this.bottomRight.ySpeed = this.topLeft.ySpeed;
            }
        }
    }
    @Override
    public String toString() {
        return "MovableRectangle{" +
                "topLeft=" + topLeft +
                ", bottomRight=" + bottomRight +
                '}';
    }
    @Override
    public void moveUp() {
        this.proverkY();
        MovablePoint rety = this.topLeft;
        rety.y += this.topLeft.ySpeed;
        rety = this.bottomRight;
        rety.y += this.bottomRight.ySpeed;
    }
    @Override
    public void moveDown() {
        this.proverkY();
        MovablePoint rety = this.topLeft;
        rety.y -= this.topLeft.ySpeed;
        rety = this.bottomRight;
        rety.y -= this.bottomRight.ySpeed;
    }
    @Override
    public void moveLeft() {
        this.proverkX();
        MovablePoint retX = this.topLeft;
        retX.x -= this.topLeft.xSpeed;
        retX = this.bottomRight;
        retX.x -= this.bottomRight.xSpeed;
    }

    @Override
    public void moveRight() {
        this.proverkX();
        MovablePoint retX = this.topLeft;
        retX.x += this.topLeft.xSpeed;
        retX = this.bottomRight;
        retX.x += this.bottomRight.xSpeed;
    }
}

package Task5;
public class Rectangle extends Shape{
    protected double width;
    protected double length;
    public Rectangle(){
        this.width = 6;
        this.length = 5;
        this.color = "red";
        this.filled = false;
    }
    public Rectangle(double width, double length){
        this.width = width;
        this.length = length;
        this.color = "red";
        this.filled = false;
    }
    public Rectangle(double width, double length, String color, boolean filled){
        this.width = width;
        this.length = length;
        this.color = color;
        this.filled = filled;
    }
    public double getWidth(){
        return width;
    }
    public double getLength(){
        return length;
    }
    public void setWidth(double width){
        this.width = width;
    }
    public void setLength(double length){
        this.length = length;
    }
    @Override
    public double getArea() {
        return width*length;
    }
    @Override
    public double getPerimeter() {
        return 2*(width+length);
    }
    @Override
    public String toString() {
        return "Shape: rectangle width: "+this.width+", color: "+this.color+" Plosh "+getArea();
    }
}

package Task5;
public abstract class Shape {
    protected String color;
    protected boolean filled;
    public Shape(){

    }
    public Shape(String c, boolean f){
        this.color = c;
        this.filled = f;
    }
    public String getColor(){
        return color;
    }
    public void setColor(String color){
        this.color = color;
    }
    public  boolean isFilled(){
        return filled;
    }
    public void setFilled(boolean filled){
        this.filled = filled;
    }
    public abstract double getArea();
    public abstract double getPerimeter();
    public abstract String toString();
}

package Task5;
public class Square extends Rectangle {
    public Square(){
        this.filled = false;
        this.color = "red";
        this.width = 1;
    }
    public Square(double side){
        this.filled = false;
        this.color = "red";
        this.width = side;
    }
    public Square(double side, String color, boolean filled){
        this.width = side;
        this.filled = filled;
        this.color = color;
    }
    public double getSide(){
        return width;
    }
    public void setSide(double side){
        this.width = side;
    }
    @Override
    public double getArea() {
        return width*width;
    }
    @Override
    public double getPerimeter() {
        return 4*width;
    }
    @Override
    public String toString() {
        return "Shape: rectangle width: "+this.width+", color: "+this.color+" Plosh "+getArea();
    }
}

package Task5;

public class TestMovable {
    public static void main(String[] args){
        MovablePoint m1 = new MovablePoint(3, 4, 6, 7);
        MovableRectangle r1 = new MovableRectangle(5,0,5, 0,9, 8);

        MovableCircle c1 = new MovableCircle(4, 6, 8, 9, 10);
        //System.out.println(((MovableCircle)c1).toString());
        System.out.println(r1);
        c1.moveDown();
        r1.moveUp();
        m1.moveLeft();
        //System.out.println(((MovableCircle)c1).toString());
        System.out.println(r1);
        //System.out.println(m1);
    }
}

package Task5;
import java.util.Scanner;
public class TestShape {
    public static void main(String[] args) {
/*      Scanner scanner = new Scanner(System.in);
        String color = scanner.nextLine();
        boolean filled = scanner.nextBoolean();
        double radius = scanner.nextDouble();


        Circle c1 = new Circle(34, "red", false);
        Square s1 = new Square(32, "red", false);
        Rectangle r1 = new Rectangle(12, 11, "red", false);
        System.out.println(c1.toString());
        System.out.println(s1.toString());
        System.out.println(r1.toString());
    }
}

 */

        Shape s1 = new Circle(5.5, "RED", false); // Upcast Circle toShape
        System.out.println(s1); // which version?
        System.out.println(s1.getArea()); // which version?
        System.out.println(s1.getPerimeter()); // which version?
        System.out.println(s1.getColor());
        System.out.println(s1.isFilled());
        System.out.println(((Circle)s1).getRadius());
        Circle c1 = (Circle)s1; // downcast back to Circle
        System.out.println(c1);
        System.out.println(c1.getArea());
        System.out.println(c1.getPerimeter());
        System.out.println(c1.getColor());
        System.out.println(c1.isFilled());
        System.out.println(c1.getRadius());
        Shape s3 = new Rectangle(1.0, 2.0, "RED", false); // upcast
        System.out.println(s3);
        System.out.println(s3.getArea());
        System.out.println(s3.getPerimeter());
        System.out.println(s3.getColor());
        System.out.println(((Rectangle)s3).getLength());
        Rectangle r1 = (Rectangle)s3; // downcast
        System.out.println(r1);
        System.out.println(r1.getArea());
        System.out.println(r1.getColor());
        System.out.println(r1.getLength());
        Shape s4 = new Square(6.6); // Upcast
        System.out.println(s4);
        System.out.println(s4.getArea());
        System.out.println(s4.getColor());
        System.out.println(((Square) s4).getSide());
        Rectangle r2 = (Rectangle)s4;
        System.out.println(r2);
        System.out.println(r2.getArea());
        System.out.println(r2.getColor());
        System.out.println(((Square)r2).getSide());
        System.out.println(r2.getLength());
        Square sq1 = (Square)r2;
        System.out.println(sq1);
        System.out.println(sq1.getArea());
        System.out.println(sq1.getColor());
        System.out.println(sq1.getSide());
        System.out.println(sq1.getLength());
    }
}