Weird chars at end of line in JTextArea

[Shital Shisode]

I am getting these weird characters at the end of the line in JTextArea when I use setText.
I am doing the foll:
//Creation of JTextArea
JPanel p2 = new JPanel(); // for JTextArea and video
displayText = new JTextArea(15,30);
JScrollPane scrollPane = new JScrollPane(displayText);
p2.add(scrollPane);
//Wrapping the lines
// I read the lines from a file, set a text and use foll code to wrap the lines.
setLineWrap(true);
setWrapStyleWord(true);
The text from the file is displayed correctly. But the last line of the para is filled by weird characters ( to complete the line I guess).
Any idea of this strange behaviour?

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