How to divide a string from a Java string to a line

public void insertUpdate(DocumentEvent e) {
    String split[], docStr = null;
    Document textAreaDoc = (Document)e.getDocument();

    try {
        docStr = textAreaDoc.getText(textAreaDoc.getStartPosition().getOffset(), textAreaDoc.getEndPosition().getOffset());
    } } catch (BadLocationException e1) {
        // // TODO Auto-generated catch block
        e1.printStackTrace();
    }

    split = docStr.split("\\n");
}