How to set superscript and subscript position in same vertical line in word document using apache poi

Question

I am trying to add superscript and subscripts using apache poi in word file but not getting in same like below

getting like this but i need proper like this [1]: https://i.sstatic.net/ZhWyX.png

Answer 1

The only possibility to have something like this in a Word document is inserting an equation of form e^x.

In Word GUI one would select Insert > Equation > e^x.

Using Apache POI this can be done using following code:

import java.io.FileOutputStream;
import org.apache.poi.xwpf.usermodel.*;

import org.openxmlformats.schemas.officeDocument.x2006.math.CTOMath;
import org.openxmlformats.schemas.officeDocument.x2006.math.CTSSubSup;
import org.openxmlformats.schemas.officeDocument.x2006.math.CTOMathArg;
import org.openxmlformats.schemas.officeDocument.x2006.math.CTR;
import org.openxmlformats.schemas.officeDocument.x2006.math.CTText;

public class CreateWordFormulaSubSup {
    
 static CTOMath createOMathSupSub(String eText, String supText, String subText) {
  CTOMath ctOMath = CTOMath.Factory.newInstance();
  CTSSubSup ctSSubSup = ctOMath.addNewSSubSup();
  
  CTOMathArg ctOMathArg = ctSSubSup.addNewE();
  CTR ctR = ctOMathArg.addNewR();
  CTText ctText = ctR.addNewT2();
  ctText.setStringValue(eText);
  
  ctOMathArg = ctSSubSup.addNewSup();
  ctR = ctOMathArg.addNewR();
  ctText = ctR.addNewT2();
  ctText.setStringValue(supText);
  
  ctOMathArg = ctSSubSup.addNewSub();
  ctR = ctOMathArg.addNewR();
  ctText = ctR.addNewT2();
  ctText.setStringValue(subText);

  return ctOMath;
 }

 static void createOMathInParagraph(XWPFParagraph paragraph, CTOMath ctOMath) {
  CTOMath ctOMathTemp = paragraph.getCTP().addNewOMath();
  paragraph.getCTP().setOMathArray(paragraph.getCTP().getOMathArray().length-1, ctOMath);
 }

 public static void main(String[] args) throws Exception {

  XWPFDocument document = new XWPFDocument();

  XWPFParagraph paragraph = document.createParagraph();
  XWPFRun run = paragraph.createRun();
  run.setText("Formula: ");
    
  createOMathInParagraph(paragraph, createOMathSupSub("2000", "+2000", "-180"));
  
  run = paragraph.createRun();
  run.setText(" text after formula.");
  
  paragraph = document.createParagraph();

  FileOutputStream out = new FileOutputStream("./CreateWordFormulaSubSup.docx");
  document.write(out);
  out.close();
  document.close();

 }
}

Result: