/* * Copyright 2003-2004, Franz-Josef Elmer, All rights reserved * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details * (http://www.gnu.org/copyleft/lesser.html). * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */package jcckit.util;/** *  Immutable class of a two-dimensional point with floating point *  coordinates. * *  @author Franz-Josef Elmer */public class Point {  private final double _x;  private final double _y;  /**   *  Creates an instance for the specified vector. The value of the    *  first/second element of <tt>vector</tt> denotes the x/y value.   *  If <tt>vector</tt> is <tt>null</tt> or not long enough 0 will be used    *  as default values.   */  public Point(double[] vector) {    double x = 0;    double y = 0;    if (vector != null && vector.length > 0) {      x =  vector[0];      if (vector.length > 1) {        y =  vector[1];      }    }    _x = x;    _y = y;  }  /** Creates an instance for the specified coordinates. */  public Point(double x, double y) {    _x = x;    _y = y;  }  /** Returns the x-coordinate of the point. */  public double getX() {    return _x;  }  /** Returns the y-coordinate of the point. */  public double getY() {    return _y;  }}