Set ASCII Characters as Bullet Points in Word in Java

import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import com.spire.doc.Section;
import com.spire.doc.documents.ListStyle;
import com.spire.doc.documents.ListType;
import com.spire.doc.documents.Paragraph;

public class SetBulletPoints {

    public static void main(String[] args) {

        //Create a Document object and add a section
        Document doc = new Document();
        Section section = doc.addSection();

        //Create four list styles based on different ASCII characters
        ListStyle listStyle1 = new ListStyle(doc, ListType.Bulleted);
        listStyle1.getLevels().get(0).setBulletCharacter("\u006e");
        listStyle1.getLevels().get(0).getCharacterFormat().setFontName("Wingdings");
        listStyle1.setName("liststyle1");
        doc.getListStyles().add(listStyle1);
        ListStyle listStyle2 = new ListStyle(doc, ListType.Bulleted);
        listStyle2.getLevels().get(0).setBulletCharacter("\u0075");
        listStyle2.getLevels().get(0).getCharacterFormat().setFontName("Wingdings");
        listStyle2.setName("liststyle2");
        doc.getListStyles().add(listStyle2);
        ListStyle listStyle3 = new ListStyle(doc, ListType.Bulleted);
        listStyle3.getLevels().get(0).setBulletCharacter("\u00b2");
        listStyle3.getLevels().get(0).getCharacterFormat().setFontName("Wingdings");
        listStyle3.setName("liststyle3");
        doc.getListStyles().add(listStyle3);
        ListStyle listStyle4 = new ListStyle(doc, ListType.Bulleted);
        listStyle4 .getLevels().get(0).setBulletCharacter("\u00d8");
        listStyle4 .getLevels().get(0).getCharacterFormat().setFontName("Wingdings");
        listStyle4.setName("liststyle4");
        doc.getListStyles().add(listStyle4);

        //Add four paragraphs and apply list style separately
        Paragraph p1 = section.getBody().addParagraph();
        p1.appendText("Spire.Doc for .NET");
        p1.getListFormat().applyStyle(listStyle1.getName());
        Paragraph p2 = section.getBody().addParagraph();
        p2.appendText("Spire.PDF for .NET");
        p2.getListFormat().applyStyle(listStyle2.getName());
        Paragraph p3 = section.getBody().addParagraph();
        p3.appendText("Spire.XLS for .NET");
        p3.getListFormat().applyStyle(listStyle3.getName());
        Paragraph p4= section.getBody().addParagraph();
        p4.appendText("Spire.Presentation for .NET");
        p4.getListFormat().applyStyle(listStyle4.getName());

        //Save to file
        doc.saveToFile("SetBulletCharacter.docx", FileFormat.Docx);
    }
}