code: public void set(int left, int top, int right, int bottom) {
          this.left = left;
          this.top = top;
          this.right = right;
          this.bottom = bottom;
      }
docs: Set the rectangle's coordinates to the specified values. Note: no range
  checking is performed, so it is up to the caller to ensure that
  left - right and top - bottom.
  
  @param left   The X coordinate of the left side of the rectangle
  @param top    The Y coordinate of the top of the rectangle
  @param right  The X coordinate of the right side of the rectangle
  @param bottom The Y coordinate of the bottom of the rectangle