How to use

resizeRelocate

method

in

javafx.scene.control.ScrollBar

@Override
protected void layoutChildren() {
  int space = 0;
  int w = 16;
  this.horizontal.resizeRelocate(0, getHeight() - w, getWidth() - w , w);
  this.vertical.resizeRelocate(getWidth() - w, 0, w, getHeight()- w);
  if (this.center != null) {
    this.clip.setX(0);
    this.clip.setY(0);
    this.clip.setWidth(getWidth() - w - space);
    this.clip.setHeight(getHeight() - w - space);
    this.center.resizeRelocate(0, 0, getWidth() - w - space, getHeight() - w - space);
  }
}

@Override
protected void layoutChildren() {
  double layoutWidth = getLayoutBounds().getWidth();
  double layoutHeight = getLayoutBounds().getHeight();
  boolean vbarVisible = vbar.isVisible();
  boolean hbarVisible = hbar.isVisible();
  double vbarWidth = vbarVisible ? vbar.prefWidth(-1) : 0;
  double hbarHeight = hbarVisible ? hbar.prefHeight(-1) : 0;
  double w = layoutWidth - vbarWidth;
  double h = layoutHeight - hbarHeight;
  content.resize(w, h);
  hbar.setVisibleAmount(w);
  vbar.setVisibleAmount(h);
  if(vbarVisible) {
    vbar.resizeRelocate(layoutWidth - vbarWidth, 0, vbarWidth, h);
  }
  if(hbarVisible) {
    hbar.resizeRelocate(0, layoutHeight - hbarHeight, w, hbarHeight);
  }
}