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import javax.swing.JTextField;
import javax.swing.text.Document;
import javax.swing.text.JTextComponent;
public class Main {
public static void main(String[] argv) throws Exception {
JTextComponent textComp = new JTextField("Initial Text");
Document doc = textComp.getDocument();
// Insert some text after the 5th character
int pos = 5;
doc.insertString(pos, "some text", null);
}
}
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