Get the default scrollbar policy : JScrollPane « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JScrollPane

import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class Main {
  public static void main(String[] argv) throws Exception {
    JTextArea textArea = new JTextArea();
    JScrollPane pane = new JScrollPane(textArea);

    // Get the default scrollbar policy
    int hpolicy = pane.getHorizontalScrollBarPolicy();
    // JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED;

    int vpolicy = pane.getVerticalScrollBarPolicy();
    // JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED;
  }
}

14.46.JScrollPane
	14.46.1.	Working with JScrollPane Headers and Corners
	14.46.2.	Add component to JScrollPane
	14.46.3.	Create a scrollable list
	14.46.4.	A corner component is displayed only if the two components at a right angle from the corner are currently shown.
	14.46.5.	Set Row Header View
	14.46.6.	Adding component to JScrollPane using its constructor
	14.46.7.	JScrollPane: display a large component within a smaller display area
	14.46.8.	Set Continuous Layout
	14.46.9.	Resetting the Viewport Position: move JScrollPane to the top
	14.46.10.	Customizing a JScrollPane Look and Feel
	14.46.11.	Get the default scrollbar policy
	14.46.12.	Listening for Scrollbar Value Changes in a JScrollPane Container
	14.46.13.	Make the scrollbars always appear
	14.46.14.	Make the scrollbars never appear
	14.46.15.	JScrollPane Scrollbar Policies