Constructors, ex02, slide 50

/*
 * Constructors, exercise 02, slide no 50
 */

/*
 * Rectangle class
 */
public class Rectangle {
    // class final variables
    private static final int DEFAULT_WIDTH = 10;
    private static final int DEFAULT_HEIGHT = 10;

    // Rectangle object properties
    private int width = Rectangle.DEFAULT_WIDTH;
    private int height = Rectangle.DEFAULT_HEIGHT;

    // constructors
    public Rectangle() {
        this(DEFAULT_WIDTH, DEFAULT_HEIGHT);
    }

    public Rectangle(int width, int height) {
        this.setWidth(width);
        this.setHeight(height);
    }

    public Rectangle(Rectangle sourceRect) {
        this.width = sourceRect.width;
        this.height = sourceRect.height;
    }

    // getter and setter for width property
    public int getWidth() {
        return this.width;
    }

    public boolean setWidth(int width) {
        if (width < 0) {
            return false;
        }
        this.width = width;
        return true;
    }

    // getter and setter for height property
    public int getHeight() {
        return this.height;
    }

    public boolean setHeight(int height) {
        if (height < 0) {
            return false;
        }

        this.height = height;
        return true;
    }

    // get rectangle area
    public int getArea() {
        return this.width * this.height;
    }

    // get rectangle perimeter
    public int getPerimeter() {
        return 2 * (this.width + this.height);
    }

    // print a rectangle
    public void print() {
        System.out.println(this.toShape('*'));
    }

    public void print(char fillChar) {
        System.out.println(this.toShape(fillChar));
    }

    // get rectangle shape
    private String toShape(char fillChar) {
        String aRow = oneRow(fillChar) + "\n";
        String result = "";
        for (int i = 0; i < this.height; i += 1) {
            result += aRow;
        }
        return result;
    }

    private String oneRow(char fillChar) {
        String row = "";
        for (int i = 0; i < this.width; i += 1)
            row += fillChar;
        return row;
    }

    @Override
    public String toString() {
        return "Rectangle [width=" + width + ", height=" + height + "]";
    }

}


/*
 * RectangleTester class, including main
 */

public class RectangleTester {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Rectangle r1 = new Rectangle(3, 5);
        Rectangle r2 = new Rectangle();

        System.out.println("r1\n" + r1.toString());
        r1.print();

        System.out.println("r2\n" + r2.toString());
        r2.print('$');

        r2.setWidth(7);
        r2.setHeight(r1.getHeight() + 1);

        System.out.println("r2\n" + r2.toString());
        r2.print('#');
    }

}