Java For Dummies Quick Reference

JScrollPane Class

Package: javax.swing

The JScrollPane class creates scroll bars, which you use in conjunction with other controls such as text areas or list controls.

Note: This section doesn’t list any methods for the JScrollPane class. The JScrollPane class does have methods (plenty of them, in fact), but none of them are particularly useful for ordinary programming.

Constructors

Constructor	Description
JScrollPane(Component view)	Creates a scroll pane for the specified component
JScrollPane(Component, int vert, int hor)	Creates a scroll pane for the specified component with the specified policy for the vertical and horizontal scroll bars

Fields

Field	Description
VERTICAL_SCROLLBAR_ALWAYS	Always adds a vertical scroll bar
VERTICAL_SCROLLBAR_AS_NEEDED	Adds a vertical scroll bar if necessary
VERTICAL_SCROLLBAR_NEVER	Never adds a vertical scroll bar
HORIZONTAL_SCROLLBAR_ALWAYS	Always adds a horizontal scroll bar
HORIZONTAL_SCROLLBAR_AS_NEEDED	Adds a horizontal scroll bar if necessary
HORIZONTAL_SCROLLBAR_NEVER	Never adds a horizontal scroll bar

The usual way to create a scroll pane is to use the second constructor. You use the first parameter of this constructor to specify the component to which you want to add scroll bars. To add scroll bars to a text area named MyTextArea, for example, you specify MyTextArea as the first parameter.

The second parameter tells the scroll pane whether to create a vertical ...