Access from Class C to value from inner Class B of Class A

Question

I don't understand why I can't even make a new instance, IDE marks inner class name as unassigned

public class WbXLS {

  class XlsCell {
    public String getxlsCell(HSSFSheet sheet, String strCellValue) {

    }
  }
}

Tried without success

WbXLS.XlsCell xlscell = new wbXLS.new XlsCell();

I made the inner class to get return value from method and use it in another class. Am I right doing so?

this actually compiles?? WbXLS.XlsCell xlscell = new wbXLS.new XlsCell (); try making the nested class static, and -> new WbXLS.XlsCell(); — Stultuske, Oct 09 '18 at 13:37
@Stultuske it's a problem, I need an inner class, not nested. In the outer class I work with xls workbook '...main void' and the inner class isn't nested because I think it will work so only with full access to outer class. — Rostislav Aleev, Oct 09 '18 at 13:40
@Stultuske, static is prohibited. I tried it, syntax error.. — Rostislav Aleev, Oct 09 '18 at 13:57
Possible duplicate of [Creating instance of inner class outside the outer class in java](https://stackoverflow.com/questions/24506971/creating-instance-of-inner-class-outside-the-outer-class-in-java) — LuCio, Oct 09 '18 at 14:02

score 2 · Answer 1 · answered Oct 09 '18 at 13:49

2

I think you may be missing brackets. This compiles for me:

WbXLS.XlsCell xlscell = new WbXLS().new XlsCell();

answered Oct 09 '18 at 13:49

WakamaHeja

score 0 · Answer 2 · answered Oct 09 '18 at 13:55

Every XlsCell object has a WbXLS.this : a reference to the object container it resides in.

So parenthesis were missing:

WbXLS.XlsCell xlscell = new WbXLS().new XlsCell();

But in effect you probably want:

WbXLS workbook = new WbXLS();
WbXLS.XlsCell xlscell = workbook.new XlsCell();

And do something with one single workbook instance. (For which several cells may be created.)

2 Answers2