private Object singleElement(int row,int col){
  Object res=null;
  if (this.isNull == null || !this.isNull[row * this.nFields + col]) {
    res=ArrayFuncs.newInstance(this.types[col],1);
    System.arraycopy(this.data[col],row,res,0,1);
  }
  return res;
}

private Object singleElement ( int row , int col ) { Object res = null ; if ( this . isNull == null || ! this . isNull [ row * this . nFields + col ] ) { res = ArrayFuncs . newInstance ( this . types [ col ] , 1 ) ; System . arraycopy ( this . data [ col ] , row , res , 0 , 1 ) ; } return res ; }
extract a single element from a table . this returns an array of length 1 .
