How to create a bulleted list in Apache POI XWPF Document?

Question

I want to create a bulleted/numbered list in a docx word document with Java. I am using the Apache POI 3.10 library. If I understand correctly, the steps would be like this:

Answer 1

static void addCustomHeadingStyle(XWPFDocument docxDocument, XWPFStyles styles, String strStyleId, int headingLevel, int pointSize, String hexColor) {
        CTStyle ctStyle = CTStyle.Factory.newInstance();
        ctStyle.setStyleId(strStyleId);

        CTString styleName = CTString.Factory.newInstance();
        styleName.setVal(strStyleId);
        ctStyle.setName(styleName);

        CTDecimalNumber indentNumber = CTDecimalNumber.Factory.newInstance();
        indentNumber.setVal(BigInteger.valueOf(headingLevel));

        // lower number > style is more prominent in the formats bar
        ctStyle.setUiPriority(indentNumber);

        CTOnOff onoffnull = CTOnOff.Factory.newInstance();
        ctStyle.setUnhideWhenUsed(onoffnull);

        // style shows up in the formats bar
        ctStyle.setQFormat(onoffnull);

        // style defines a heading of the given level
        CTPPr ppr = CTPPr.Factory.newInstance();
        ppr.setOutlineLvl(indentNumber);
        ppr.addNewNumPr().addNewNumId().setVal(BigInteger.ONE);
        ctStyle.setPPr(ppr);

        XWPFStyle style = new XWPFStyle(ctStyle);

        CTHpsMeasure size = CTHpsMeasure.Factory.newInstance();
        size.setVal(new BigInteger(String.valueOf(pointSize)));
        CTHpsMeasure size2 = CTHpsMeasure.Factory.newInstance();
        size2.setVal(new BigInteger("24"));

        CTFonts fonts = CTFonts.Factory.newInstance();
        fonts.setAscii("Calibri Light");

        CTRPr rpr = CTRPr.Factory.newInstance();
        rpr.setRFonts(fonts);
        rpr.setSz(size);
        rpr.setSzCs(size2);

        style.setType(STStyleType.PARAGRAPH);
        styles.addStyle(style);
    }
}

it is possible to add custom styles, for creating titles and index, this answer is not mine just some changes to add the number