Laba1

public class Test {
    public static void main(String[] args){
        Point[] lineFractures = new Point[] {
                new Point (1.0, 2.0),
                new Point (5.0, 2.1),
                new Point (1.0,10.0),
                new Point (6.0, 1.0)};
        Line l1 = new Line (lineFractures);
        System.out.println("l1 length: " + l1.showLength());
        System.out.println(l1);
    }
}

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public class Point {
    private double x, y;

    public Point (double x, double y){
        this.x = x;
        this.y = y;
    }

    public double getX() { return x; }
    public double getY() { return y; }

    public String toString() {
        return "(" + x + ", " + y + ")";
    }
}

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public class Line {
    private Point[] lineFractures;
    public Line (Point[] lineFractures){
        this.lineFractures = new Point[lineFractures.length];
        for (int i = 0; i < lineFractures.length; i++){
            this.lineFractures[i] = lineFractures[i];
        }
    }
    public double showLength (){
        double length = 0;
        for (int i = 1; i < lineFractures.length; i++){
            double tempX = Math.pow(lineFractures[i].getX() - lineFractures[i - 1].getX(), 2);
            double tempY = Math.pow(lineFractures[i].getY() - lineFractures[i - 1].getY(), 2);
            length += Math.sqrt(tempX + tempY);
        }
        return length;
    }

    public String toString(){
        String points = "";
        for (int i = 0; i < lineFractures.length; i++){
            points += "x: " + lineFractures[i].getX() + "; y: " + lineFractures[i].getY() + "\n";
        }
        return "Line Fractures: " + points;
    }
}