## Scrolling

If you have a mouse with a scroll wheel and are running Java 2 version 1.4, you can use the wheel to scroll up and down in the text area. Various modifier keys change the action of the wheel:

- `Shift` - scrolls an entire page at a time.

- `Control` - scrolls a single line at a time.

- `Alt` - moves the caret up and down instead of scrolling.

- `Alt`+`Shift` - extends the selection up and down instead of scrolling.

Keyboard commands for scrolling the text area are also available.

View>Scrolling>Scroll to Current Line (shortcut: `C+e C+j`) scrolls the text area in order to make the caret visible, if necessary. It does nothing if the caret is already visible.

View>Scrolling>Center Caret on Screen (shortcut: `C+e C+n`) moves the caret to the line in the middle of the screen.

View>Scrolling>Line Scroll Up (shortcut: `C+QUOTE`) scrolls the text area up by one line.

View>Scrolling>Line Scroll Down (shortcut: `C+SLASH`) scrolls the text area down by one line.

View>Scrolling>Page Scroll Up (shortcut: `A+QUOTE`) scrolls the text area up by one screenful.

View>Scrolling>Page Scroll Down (shortcut: `A+SLASH`) scrolls the text area down by one screenful.

The above scrolling commands differ from the caret movement commands in that they don't actually move the caret; they just change the scroll bar position.