The GeometryVector class is the mathematical workhorse of th

The Geometry_Vector class is the mathematical \"workhorse\" of the simulation. It is used to calculate the forces between every Body in the Solar System. If things are going wrong with your simulation, it is most likely because your vector class is wrong.

just compete the class, it has some comment

/**

*

*/

package stars;

import java.awt.geom.Point2D;

/**

* @author germain

*

*/

public class Geometry_Vector extends Point2D.Double

{

/**

   *

   * Constructor

   *

   * @param x - the X

   * @param y - and Y values

   */

public Geometry_Vector(double xx, double yy)

{

  

}

/**

   *

   * A \"Copy\" constructor. Creat ourself based on the given vector

   * @param the_copy

   */

   public Geometry_Vector(Geometry_Vector the_copy)

   {

     

   }

/**

   * Add the components of the given vector to me.

   *

   * @param vector

   */

public void add_to_me(Geometry_Vector vector)

{

  

}

/**

   * Subtract the components of the given vector from me.

   * @param vector

   */

public void subtract_from_me(Geometry_Vector vector)

{

  

}

/**

   * Divide my components by the scalar

   * @param scalar

   */

public void divide_by( double scalar )

{

  

}

/**

   * Multiply my components by the scalar

   * @param scalar

   */

public void multiply_me_by(double scalar)

{

  

}

/**

   * @return my magnitude (the distance from the origin to my X,Y)

   * Think Pythagoras

   */

public double magnitude()

{

      return 0; // \"FIXME\";

}

/**

   * @return an informative (but concise) description of this object

   */

public String toString()

{

      return \"FIXME\";

}

/**

   * Take this vector and turn it into a vector of length 1. This is done by

   * dividing each component (i.e., x,y) by the magnitude.

   */

public void normalize()

{

  

}

  

}

Solution

import java.awt.geom.Point2D;

/**

* @author germain

*

*/

public class Geometry_Vector extends Point2D.Double

{

/**

   *

   * Constructor

   *

   * @param x - the X

   * @param y - and Y values

   */

public Geometry_Vector(double xx, double yy)

{

  

}

/**

   *

   * A \"Copy\" constructor. Creat ourself based on the given vector

   * @param the_copy

   */

   public Geometry_Vector(Geometry_Vector the_copy)

   {

     

   }

/**

   * Add the components of the given vector to me.

   *

   * @param vector

   */

public void add_to_me(Geometry_Vector vector)

{

  

}

/**

   * Subtract the components of the given vector from me.

   * @param vector

   */

public void subtract_from_me(Geometry_Vector vector)

{

  

}

/**

   * Divide my components by the scalar

   * @param scalar

   */

public void divide_by( double scalar )

{

  

}

/**

   * Multiply my components by the scalar

   * @param scalar

   */

public void multiply_me_by(double scalar)

{

  

}

/**

   * @return my magnitude (the distance from the origin to my X,Y)

   * Think Pythagoras

   */

public double magnitude()

{

      return 0; // \"FIXME\";

}

/**

   * @return an informative (but concise) description of this object

   */

public String toString()

{

      return \"FIXME\";

}

/**

   * Take this vector and turn it into a vector of length 1. This is done by

   * dividing each component (i.e., x,y) by the magnitude.

   */

public void normalize()

{

  

}

  

}