function DimensionD(width, height) {
  this.width = 0;
  this.height = 0;
  if (width !== null && height !== null) {
    this.height = height;
    this.width = width;
  }
}

DimensionD.prototype.getWidth = function ()
{
  return this.width;
};

DimensionD.prototype.setWidth = function (width)
{
  this.width = width;
};

DimensionD.prototype.getHeight = function ()
{
  return this.height;
};

DimensionD.prototype.setHeight = function (height)
{
  this.height = height;
};

module.exports = DimensionD;