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JTextArea resultsTA = new JTextArea("initial text"
JScrollPane scrollPn = new JScrollPane();
contentPane.add(scrollPn, BorderLayout.CENTER); // No center panel needed. ScrollPane added directly to frame.
JTextArea displayTA = new JTextArea("initial text");
scrollPn.setViewportView(displayTA); // put the text area in the scroll pane
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SerialVersionUID compiler warning:
A very common compiler warning to receive is the following for your frame class and other customized GUI components:
{{The serializable class XXX does not declare a static final serialVersionUID field of type long }}
If you do, add the following field to the class:
{{private static final long serialVersionUID = 42L; // Use a random, unique integer value here }}
For more information, see this web page.