protected void readKeys() throws IOException {
    """
	Read in the row and column keys (DM_KEY)
	
	@throws IOException problem reading file
    """
    if (dmLabel == null) {
      return;
    }
    keys = new DMKeys();
    // read the row keys
    int num = dmLabel.krkeys;
    List<Key> rkeys = new ArrayList<>(num);
    for (int i = 0; i < num; i++) {
      String key = DM_RSTR(dmLabel.kprkey + i);
      rkeys.add(new Key(key, i, ROW));
    }
    keys.kkrow = rkeys;
    num = dmLabel.kckeys;
    List<Key> ckeys = new ArrayList<>(num);
    for (int i = 0; i < num; i++) {
      String key = DM_RSTR(dmLabel.kpckey + i);
      ckeys.add(new Key(key, i, COL));
    }
    keys.kkcol = ckeys;
  }
protected void readKeys() throws IOException {
    if (dmLabel == null) {
      return;
    }
    keys = new DMKeys();
    // read the row keys
    int num = dmLabel.krkeys;
    List<Key> rkeys = new ArrayList<>(num);
    for (int i = 0; i < num; i++) {
      String key = DM_RSTR(dmLabel.kprkey + i);
      rkeys.add(new Key(key, i, ROW));
    }
    keys.kkrow = rkeys;
    num = dmLabel.kckeys;
    List<Key> ckeys = new ArrayList<>(num);
    for (int i = 0; i < num; i++) {
      String key = DM_RSTR(dmLabel.kpckey + i);
      ckeys.add(new Key(key, i, COL));
    }
    keys.kkcol = ckeys;
  }
protected void readKeys ( ) throws IOException { if ( dmLabel == null ) { return ; } keys = new DMKeys ( ) ; // read the row keys int num = dmLabel . krkeys ; List < Key > rkeys = new ArrayList <> ( num ) ; for ( int i = 0 ; i < num ; i ++ ) { String key = DM_RSTR ( dmLabel . kprkey + i ) ; rkeys . add ( new Key ( key , i , ROW ) ) ; } keys . kkrow = rkeys ; num = dmLabel . kckeys ; List < Key > ckeys = new ArrayList <> ( num ) ; for ( int i = 0 ; i < num ; i ++ ) { String key = DM_RSTR ( dmLabel . kpckey + i ) ; ckeys . add ( new Key ( key , i , COL ) ) ; } keys . kkcol = ckeys ; }
Read in the row and column keys (DM_KEY)

@throws IOException problem reading file
Read in the row and column keys ( DM_KEY )