Connection conn;
...
CallableStatement cst = conn.prepareCall("{? = call updateRemains(@nomn=?, @kol=?)}";
cst.registerOutParameter( 1 , Types.INTEGER);
cst.setInt( 2 ,  112111100 );
cst.setInt( 3 ,  3 );
cst.execute();
int ret = cst.getInt( 1 );

  public static void testCallableStatement()
    throws SQLException {
    final int myVal =  13 ;
    DriverManager.registerDriver(new net.sourceforge.jtds.jdbc.Driver());
    Connection conn =
      DriverManager.getConnection("jdbc:jtds:sqlserver://oz:1433", "sa", "sa");
    Statement stmt = conn.createStatement();
    stmt.execute(
      "CREATE PROCEDURE #SAfe0006 @p1 INT, @p2 VARCHAR(20) OUT AS " +
      "SET @p2=CAST(@p1-1 AS VARCHAR(20)) RETURN @p1+1"
    );
    stmt.close();

    // Try all formats: escaped, w/ exec and w/o exec
    String[] sql = {"{?=call #SAfe0006(?,?)}", "exec ?=#SAfe0006 ?,?", "?=#SAfe0006 ?,?"};

    for (int i =  0 ; i < sql.length; i++) {
      CallableStatement cs = conn.prepareCall(sql[i]);
      cs.registerOutParameter( 1 , Types.INTEGER);
      cs.setInt( 2 , myVal);
      cs.registerOutParameter( 3 , Types.VARCHAR);
      cs.execute();

      System.out.println(cs.getInt( 1 ));
      System.out.println(cs.getString( 3 ));
      cs.close();
    }
  }