setLineIncrement(int lineIncrement) {
public void setLineIncrement(int lineIncrement) {
setLineIncrement(int lineIncrement){  if (lineIncrement < 0)    throw new IllegalArgumentException ("Unit increment less than zero.");  int range = maximum - minimum;  if (lineIncrement > range)    {      if (range == 0)        lineIncrement = 1;      else        lineIncrement = range;	}  if (lineIncrement == this.lineIncrement)    return;  this.lineIncrement = lineIncrement;  ScrollbarPeer peer = (ScrollbarPeer) getPeer ();  if (peer != null)    peer.setLineIncrement (this.lineIncrement);}