package rebelsky.twodim;

import java.io.PrintWriter;  
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main
{
	public static void main(String[] args)
		throws Exception
	{
		// Prepare for input and output.
		PrintWriter pen = new PrintWriter(System.out, true);
		BufferedReader keyboard =
                	new BufferedReader(new InputStreamReader(System.in));

		// Create a new vector.
		TwoDimVector vec = new TwoDimVector(3.0,4.0);
		pen.print("Original vector: "); 
		vec.printYourself(pen);
		
		pen.println("Stretching by a factor of 2!");
		TwoDimVector vec2 = vec.stretch(2);
		pen.println("Stretched: " + vec2);
		vec2.printYourself(pen);
		
		pen.println("Converting to unit vector");
		TwoDimVector unit = vec.unitVector();
		pen.println("Unit: " + unit);
		pen.print("x: ");
		pen.println(unit.getX());
		pen.print("y: ");
		pen.println(unit.getY());
		pen.print("radius: ");
		pen.println(unit.getDistanceFromOrigin());
		pen.print("angle: ");
		pen.println(unit.getAngle());
	
		pen.println("Checking original.");
		pen.print("x: ");
		pen.println(vec.getX());
		pen.print("y: ");
		pen.println(vec.getY());

		pen.println("Computing product: ");
		pen.println(vec.dotProduct(vec2));
	} // main(String[])
} // class Main