Adding Scrollbar To Jtextarea In Swing

The tutorial recommends setting the number of rows and columns to control the size of the jtextarea. To give a suggestion on how big to make the text area.

Adding Scrollbar To Jtextarea Youtube

Youre using a null layout this is discouraged as it produces more problems than solutions specially when you try to use jscrollpanes since they take the preferredsize of the component to decide whether to add the scroll bars or not.

Adding scrollbar to jtextarea in swing. To decide when and which scrollbars are shown when neededneveralways you use the sethorizontalscrollbarpolicy and setverticalscrollbarpolicy methods. Textarea new jtextarea5 20. For more information about this.

To add the scrollbars to a component for example jtextarea you can use the jscrollpane. And then since its the jscrollpane you are adding to the panel its the jscrollpane which you have to provide a location and size for. Although if you had used one of the regular layout managers you wouldnt have to be dealing with that issue.

Also you should create the text area using something like. You can add the jtextarea to a jscrollpane easily. Get rid of that statement and just add the scrollpane to the frame.

See null layout is evil and why is it frowned upon to use a null layout in swing. Then scrollbars will appear automatically as you add data to the text area. This video shows how to add scrollbar to jtextarea.

There are several errors in your code. I did what you said but still nothing happens.

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