help,how to improve JTextPane's efficiency?

[zhijie dong]

such as:

if there have 20 thousand rows,how to do?



StyledDocument doc=new StyledDocument();
JTextPane textPane=new JTextPane(doc);

Style errorStyle=textpane.addStyle(null,null);
StyleConstants.setForeground(defaultStyle,Color.RED);

Style infoStyle=textpane.addStyle(null,null);
StyleConstants.setForeground(infoStyle,Color.BLUE);

int count=1;
while(true){
doc.insertString(doc.getLength(), ""+count, errorStyle);
doc.insertString(doc.getLength(), ""+count, infoStyle);
count++;
}