如何使用apache poi重命名excel中的名称

Question

How do I change the reference of a name, which refers to a set of cells, with Apache poi? I have already looked at the API and found a few functions such as getNameName() , I am unsure whether or not I have to use that or how I am supposed to use it.

Suppose I have a name "Names of students" that refers to cells $A$2:$A$10, I want to change in java this name to refer to cells $A$2:$A$20. Does anyone know how to do this?

edit: I looked at the documentation and tried to come up with a sample code but even this doesn't work.

code:

 InputStream inp = new FileInputStream("test.xlsx");
        Workbook wb = WorkbookFactory.create(inp);
        Sheet sheet = wb.getSheetAt(0);
        Name name;
        name = wb.createName();
        name = name.getNameName("NameOFStudents");
        name.setRefersToFormula("=Sheet1!$A$1:$A$20");
        FileOutputStream fileout = new FileOutputStream("test2..xlsx");
        wb.write(fileout);
        fileout.close();

Answer 1

so i finally figured out how to do it. you use the workbook variable with the function .getName() to get the name that you require and assign it to a Name variable and then use .setRefersToFormula() to change the reference

code:

        InputStream inp = new FileInputStream("test.xlsx");
        Workbook wb = WorkbookFactory.create(inp);
        Sheet sheet = wb.getSheetAt(0);
        Name name;
        name = wb.getName("NameOFStudents");
        name.setRefersToFormula("Sheet1!$A$1:$A$20");
        FileOutputStream fileout = new FileOutputStream("test2..xlsx");
        wb.write(fileout);
        fileout.close();