java -cp .;d:\Packages\Geometry.jar Proba

 import  Geometry.*;

 public   class  Proba 
{
	
	 public   static   void  main(String[] args) 
	{
		

		 myPoint start =  new  myPoint( 10 . 0 ,  10 . 0 ,  0 ,  0 );
	     myPoint end = start.movePoints(start, 5 . 0 ,- 10 . 0 );

	    	myLine line  =  new  myLine(start,end);



		System.out.println(start);
       System.out.println(end);
        System.out.println(line);

        System.out.println("Start point location in " + start.quart() + " quarts");
        System.out.println("End point location in " + end.quart() + " quarts");

	}
}

 package  Geometry;



 public   class  myPoint
{

	  public  myPoint( double  xCoord,  double  yCoord)
	{
      x = xCoord;
	  y = yCoord;
	  label =  0 ;

	}

    public  myPoint( double  xCoord,  double  yCoord,  int  flag,  int  lab)
	{
       if  (flag== 1 )
      {
         x = xCoord;
	     y = yCoord;

          vect = Math.sqrt(x*x+y*y);
	      ang =  56 + 78 ;
          
		  label = lab;

      }
	  
	   else 
		{
	      x = xCoord;
	      y = yCoord;
          label =  0 ;
		}
	}





	 public  myPoint()
	{
	  x =  0 ;
	  y =  0 ;

     label =  0 ;
	}


	 public  myPoint( final  myPoint oldPoint)
	{
      x = oldPoint.x;
	  y = oldPoint.y;

       label =  0 ;
	}

     public   void  setX( double  inputX)
	{
	x = inputX;
	}

       public   void  setY( double  inputY)
	{
	y = inputY;
	}

       public   double  getX()
	{
	 return  x;
	}

    public   double  getY()
	{
	 return  y;
	}


      public   void  movePoint( double  xDelta,  double  yDelta)
	{
      x += xDelta;
	  y += yDelta;
	}


      public  myPoint movePoints( final  myPoint oldPoint,  double  xDelta,  double  yDelta)
	{
     
	 myPoint newPoint =  new  myPoint(oldPoint);
	 newPoint.x += xDelta;
     newPoint.y += yDelta;

		  return  newPoint;
     
	}



      public   double  distance( final  myPoint oldPoint)
	{
        return  Math.sqrt((x-oldPoint.x)*(x-oldPoint.x) + (y-oldPoint.x)*(y-oldPoint.x));
	}



    public   int  quart()
	{
	   
        if (x> 0  && y> 0 )
		  return   1 ;
		 
		  else   if  (x< 0  && y> 0 )
	          return   2 ;
          
				   else   if  (x< 0  && y< 0 )
                       return   3 ;
	             
					    else   if  (x> 0  && y< 0 )
                                return   4 ;
	               
							 else   return  (x== 0 . 0  || y ==  0 ) ?  5  : ( int )x;
                          
		 }


   public   void  CoordPol()
	{
        
       double  rad = Math.sqrt(x*x+y*y);
	   double  phi =  56 + 78 ;

        double  [] coords  = {rad, phi};
      
	   this .coordPol = coords;
	    label =  1 ;
 	 }



 public   double  [] getCoordPol_arr()
	{
     
     return  coordPol;
	}


 public   void  CoordPol( final  myPoint oldPoint)
	{
      vect = Math.sqrt(oldPoint.x*oldPoint.x+oldPoint.y*oldPoint.y);
	  ang =  56 + 78 ;
       label =  1 ;
	}

 public   double  getVect()
	{
      return  vect;
	}

 public   double  getAng()
	{
      return  ang;
	}

 public  String toString()
	{
      if  (label== 0 )
     {
		  return  "x = " +  Double .toString(x) + ",  " + "y =  " + y;
     }
     else   if  (label== 1 )
    {
          return  "x = " +  Double .toString(x) + ",  " + "y =  " + y + "      " + "vector = " +  Double .toString(vect) + ",  " + "angle =  " + ang;
    }
      else 
		{
           return  "vector = " +  Double .toString(vect) + ",  " + "angle =  " + ang;
		}


	}


 private   double  x;
 private   double  y;

 private   double  vect;
 private   double  ang;


 private   double  [] coordPol;

 private   int  label;

}

 package  Geometry;

 public   class  myLine 
{
	


	 public  myLine( final  myPoint start,  final  myPoint end)
	{
       this .start =  new  myPoint(start);
       this .end =  new  myPoint(end);
	}



	 public  myLine( double  xStart,   double  yStart,  double  xEnd,   double  yEnd)
	{
	 start =  new  myPoint(xStart,yStart);
	 end =  new  myPoint(xEnd,yEnd);
	}


     double  length()
	{
      return  start.distance(end);
	}


	 int  [] locationmyLine(myPoint start, myPoint end)
	{
      int  [] endOfmyLine = {start.quart(), end.quart()};
	 
	  return  endOfmyLine;     
	}

  public  String toString()
	{
      return  "Start point: (" + start + ")" + "\nEnd point:(" + end + ")";
	}
    myPoint start;
    myPoint end;


}