import java.awt.Color; import javax.swing.JTextPane; import javax.swing.text.Style; import javax.swing.text.StyleConstants; import javax.swing.text.StyledDocument; public class Main { public static void main(String[] argv) throws Exception { JTextPane textPane = new JTextPane(); StyledDocument doc = textPane.getStyledDocument(); // Makes text red Style style = textPane.addStyle("Red", null); StyleConstants.setForeground(style, Color.red); } }