public class GIS {


/**
 *This is the main method for the Class.
 *It is called by the interpreter to determine how to run the program.
**/
	public static void main (String args[]) {


/**
 *This is the point where we are.
**/
		Point weAreHerePoint = new Point ();


/**
 *These are the setup points for where we are.
**/
			weAreHerePoint.setX (200.0);
			weAreHerePoint.setY (300.0);
			weAreHerePoint.setZ (50.0);
			weAreHerePoint.setAttribute ("River deep");


/**
 *This is the point where the destination is located.
**/
		Point destinationPoint = new Point ();


/**
 *These are the setup points for where the destination is located.
**/
			destinationPoint.setX (400.0);
			destinationPoint.setY (500.0);
			destinationPoint.setZ (1500.0);
			destinationPoint.setAttribute ("Mountain high");


/**
 *This makes an object of the GIS class
**/
	GIS gis = new GIS();

	double result =

	gis.getDistanceBetween(weAreHerePoint, destinationPoint);


/**
 *This prints the difference between the two locations in the Y direction.
**/
	System.out.println(gis.getDistanceBetween(weAreHerePoint,destinationPoint));
}



/**
 *This calculates the distance in the Y direction inside the 'getDistanceBetween' method.
**/

double getDistanceBetween(Point p1, Point p2) {

		double x1;
		double x2;
		double y1;
		double y2;
		double z1;
		double z2;

		x1 = p1.getX();
		x2 = p2.getX();
		y1 = p1.getY();
		y2 = p2.getY();
		z1 = p1.getZ();
		z2 = p2.getZ();

double distance = Math.sqrt((x1-x2) + (y1-y2) + (z1-z2));

return distance;

}
}