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From: Jens
Newsgroups: comp.lang.java.programmer
Subject: unchecked conversion warning.
Date: Wed, 30 May 2012 15:32:43 +0200
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This code compiles with an 'unchecked conversion' warning.
I have tried various corrections, for example casting like (Vector<Object>), but to no
avail.
What am I doing wrong?l
The code is the smallest demo I could make from the original application.

import java.util.Vector;
public class genericsdemo
{
  private static Vector<Vector> vdata = new Vector<Vector>(); //a Vector of Vectors
  private static Vector<Object> vrow  = new Vector<Object>(); //a row

  public static void main(String args[]) {
    vrow.add(null); //two columns in the row
    vrow.add(null);

    vdata.add(vrow); //add the row to the Vector of Vectors

    Vector vtmp = getrow(); //test
  }

  private static Vector<Object> getrow() {
    return vdata.elementAt(0);  //warning: [unchecked] unchecked conversion
  }
}

JensJ