/**
 * Point3d is one of the simplest possible classes we will
 * show off in this course.  It has fields with their
 * respective getters and setters and nothing else.
 * 
 * Walker White
 * January 26, 2012
 */
public class Point3d {
  
  /** These are the three coordinates. */
  private double x;
  private double y;
  private double z;

  /** 
   * Constructor:  a point at the origin 
   * Precondition: None
   */
  public Point3d() {
    x = 0.0;  
    y = 0.0;  
    z = 0.0;
  }

  /** 
   * Constructor: a point with given coordinates (x0,y0,z0)
   * Precondition: None
   */
  public Point3d(double x0, double y0, double z0) {
    x = x0;  
    y = y0;  
    z = z0;
  }
  
  /** Return: this Point's x coordinate */
  public double getX() {
    return x;
  }

  /** Assigns value to x coordinate */
  public void setX(double value) {
    x = value;
  }

  /** Return: this Point's y coordinate */
  public double getY() {
    return y;
  }

  /** Assigns value to y coordinate */
  public void setY(double value) {
    y = value;
  }

  /** Return: this Point's z coordinate */
  public double getZ() {
    return z;
  }

  /** Assigns value to z coordinate */
  public void setZ(double value) {
    z = value;
  }
  
}