scrollbars in JTextArea
Solution 1:
As Fredrik mentions in his answer, the simple way to achieve this is to place the JTextArea
in a JScrollPane
. This will allow scrolling of the view area of the JTextArea
.
Just for the sake of completeness, the following is how it could be achieved:
JTextArea ta = new JTextArea();
JScrollPane sp = new JScrollPane(ta); // JTextArea is placed in a JScrollPane.
Once the JTextArea
is included in the JScrollPane
, the JScrollPane
should be added to where the text area should be. In the following example, the text area with the scroll bars is added to a JFrame
:
JFrame f = new JFrame();
f.getContentPane().add(sp);
Thank you kd304 for mentioning in the comments that one should add the JScrollPane
to the container rather than the JTextArea
-- I feel it's a common error to add the text area itself to the destination container rather than the scroll pane with text area.
The following articles from The Java Tutorials has more details:
- How to Use Scroll Panes
- How to Use Text Areas
Solution 2:
Put it in a JScrollPane
Edit: Here is a link for you: http://java.sun.com/docs/books/tutorial/uiswing/components/textarea.html
Solution 3:
You first have to define a JTextArea as per usual:
public final JTextArea mainConsole = new JTextArea("");
Then you put a JScrollPane over the TextArea
JScrollPane scrollPane = new JScrollPane(mainConsole);
scrollPane.setBounds(10,60,780,500);
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
The last line says that the vertical scrollbar will always be there. There is a similar command for horizontal. Otherwise, the scrollbar will only show up when it is needed (or never, if you use _SCROLLBAR_NEVER). I guess it's your call which way you want to use it.
You can also add wordwrap to the JTextArea if you want to:Guide Here
Good luck,
Norm M
P.S. Make sure you add the ScrollPane to the JPanel and not add the JTextArea.
Solution 4:
txtarea = new JTextArea();
txtarea.setRows(25);
txtarea.setColumns(25);
txtarea.setWrapStyleWord(true);
JScrollPane scroll = new JScrollPane (txtarea);
panel2.add(scroll); //Object of Jpanel
Above given lines automatically shows you both horizontal & vertical Scrollbars..
Solution 5:
Simple Way to add JTextArea in JScrollBar with JScrollPan
import javax.swing.*;
public class ScrollingTextArea
{
JFrame f;
JTextArea ta;
JScrollPane scrolltxt;
public ScrollingTextArea()
{
// TODO Auto-generated constructor stub
f=new JFrame();
f.setLayout(null);
f.setVisible(true);
f.setSize(500,500);
ta=new JTextArea();
ta.setBounds(5,5,100,200);
scrolltxt=new JScrollPane(ta);
scrolltxt.setBounds(3,3,400,400);
f.add(scrolltxt);
}
public static void main(String[] args)
{
new ScrollingTextArea();
}
}