private static void writeSet1(final BTree btree){
  log.info("");
  for (int i=0; i < 1000; i++) {
    btree.insert(i,i);
  }
}

private static void writeSet1 ( final BTree btree ) { log . info ( "" ) ; for ( int i = 0 ; i < 1000 ; i ++ ) { btree . insert ( i , i ) ; } }
write a set of tuples having keys in [ 0 : 1000 ) and values equal to the keys .
