boolean loginFlag = false;

        Connection con;
        Statement st;
        ResultSet rs;

        try{
            Class.forName("com.mysql.jdbc.Driver");
            con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", ""); //Establishing connection //3306 - code for mac
            st = con.createStatement();

            String query = "select * from users";
            rs = st.executeQuery(query);

            while(rs.next()) {
                if(catchUsername.equals(rs.getString("username")) && catchPassword.equals(rs.getString("password"))) {
                    loginFlag = true;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return loginFlag;