/**
 * This class has a main method in which we use our Line class and
 * our Point class to create lines
 */
public class ComputeLines{
    public static void main(String[] args){
        /**
         * Let's compute the line through the points (0,0) and (5,0)
         */
        Point p1 = new Point(); // defaults to the origin (0, 0)
        Point p2 = new Point(5, 0);
        Line line = new Line(p1, p2);
        
        System.out.println("The slope of the line is " + line.getSlope());
        System.out.println("The following points are on this line:");
        System.out.println("(" + 10.0 + ", " + line.computeY(10.0) + ")");
        System.out.println("(" + 20.0 + ", " + line.computeY(20.0) + ")");
        System.out.println("(" + 50.0 + ", " + line.computeY(50.0) + ")");

        
        /**
         * Let's compute the line through the points (1,1) and (2,2)
         */
        double x1 = 1, y1 = 1, x2 = 2, y2 = 2;
        line = new Line(x1, y1, x2, y2);
                
        System.out.println("\n\nThe slope of the line is " + line.getSlope());
        System.out.println("The following points are on this line:");
        System.out.println("(" + 10.0 + ", " + line.computeY(10.0) + ")");
        System.out.println("(" + 20.0 + ", " + line.computeY(20.0) + ")");
        System.out.println("(" + 50.0 + ", " + line.computeY(50.0) + ")");
        
        /**
         * Finally, let's consider the line through the points (2,4) and (5,10)
         */
        line = new Line(2, 4, 5, 10);
                
        System.out.println("\n\nThe slope of the line is " + line.getSlope());
        System.out.println("The following points are on this line:");
        System.out.println("(" + 10.0 + ", " + line.computeY(10.0) + ")");
        System.out.println("(" + 20.0 + ", " + line.computeY(20.0) + ")");
        System.out.println("(" + 50.0 + ", " + line.computeY(50.0) + ")");
        

    }
    
}