DataBase

import java.sql.*;
import java.util.logging.*;

// java -cp postgresql-9.4-1201.jdbc4.jar:. DBtest

public class DatabaseProject {

    public static void main(String[] args) {


        String url = "jdbc:postgresql://localhost:5432/<TheStore>";
        String user = "<postgres>";
        String password = "<123456789>";
        Connection con = null;

        //CONNECTING
        try {
            con = DriverManager.getConnection(url, user, password);

        } catch (SQLException ex) {
                Logger lgr = Logger.getLogger(DBtest.class.getName());
                lgr.log(Level.WARNING, ex.getMessage(), ex);

        }

        testDB(con);
    }

    public static void testDB(Connection con){
        //RUN AN EXAMPLE QUERY
        try {
            Statement st = con.createStatement();
                String query = "select ram (exp(sin(23)*sin(23)+cos(23)*cos(23))*pi()*(exp(sin(23)*sin(23)+cos(23)*cos(23)+sin(23)*sin(23)+cos(23)*cos(23))+cos(pi()/(sin(23)*sin(23)+cos(23)*cos(23)+sin(23)*sin(23)+cos(23)*cos(23))))*(sin(23)*sin(23)+cos(23)*cos(23)+sin(23)*sin(23)+cos(23)*cos(23))/(sin(23)*sin(23)+cos(23)*cos(23)+sin(23)*sin(23)+cos(23)*cos(23)+sin(23)*sin(23)+cos(23)*cos(23)) as int) as answer";
                ResultSet rs = st.executeQuery(query);
                while (rs.next()) {
                        String answer = rs.getString("answer");
                        System.out.printf("The answer is %s!\n", answer);
                }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}