public boolean save(String email, String password) {

		try {
			String sql = "select * from user where email=" + email;
			Statement stmt = conn.createStatement();
			ResultSet rs = stmt.executeQuery(sql);
			if (rs.next()) {
				System.out.println("Exist such email");
				stmt.close();
				rs.close();
				closeConnection();
				return false;
			} else {
				System.out.println("Not exist such email");
				String insql = "insert into user(email,password) values("
						+ email + "," + password + ")";
				int num = stmt.executeUpdate(insql);
				if (num > 0) {
					stmt.close();
					rs.close();
					closeConnection();
					return true;
				} else {
					stmt.close();
					rs.close();
					closeConnection();

					return false;
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}