Natour, O. 10/24/16 Csc-220 Triangle Class

/*Omar Natour
 * 10/17/2016
 * Csc-220 Data Structures
 * Hw5 Triangle Class
 * Create a class that exemplifies a triangle
 * [email protected]
 */

public class Triangle extends Shape {

    private double side1;
    private double side2;
    private double side3;

    //// Constructors///////////////////////////////////////////////////////////

    public Triangle() {
        this(1, 1, 1, "white", false);
    }

    public Triangle(double a, double b, double c) {
        this(a,b,c, "white", false);
    }

    public Triangle(double a, double b, double c, String color, boolean filled) {
        super(color, filled);
        setTriangle(a, b, c);
    }

    ////Methods////////////////////////////////////////////////////////////////

    @Override
    public double getArea() {
        double s = getPerimeter() / 2; // semiperimeter

        return Math.sqrt(s * (s - getSide1()) * (s - getSide2()) * (s - getSide3()));
    }

    @Override
    public double getPerimeter() {
        return (getSide1() + getSide2() + getSide3());
    }

    @Override
    public String toString() {
        return ("side1 = " + getSide1() + ", side2 = " + getSide2() + ", side 3 = " + getSide3());
    }

    ////Getters & Setters//////////////////////////////////////////////////////

    public double getSide1() {
        return side1;
    }

    public void setSide1(double side1) {
        if (side1 > 0)
            this.side1 = side1;
        else
            throw new InvalidSideException('1');
    }

    public double getSide2() {
        return side2;
    }

    public void setSide2(double side2) {
        if (side2 > 0)
            this.side2 = side2;
        else
            throw new InvalidSideException('2');
    }

    public double getSide3() {
        return side3;
    }

    public void setSide3(double side3) {
        if (side3 > 0)
            this.side3 = side3;
        else
            throw new InvalidSideException('3');
    }

    private void setTriangle(double a, double b, double c) {
        if ((a + b > c) && (a + c > b) && (b + c > a)) {
            setSide1(a);
            setSide2(b);
            setSide3(c);
        }else
            throw new InvalidSideException();
    }
}

////Side Exceptions////////////////////////////////////////////////////////////

@SuppressWarnings("serial")
class InvalidSideException extends RuntimeException {

    public InvalidSideException() {
        super("The three sides provided do not create a triangle.");
    }

    public InvalidSideException(char side) {
        super("Invalid side: " + side);
    }
}