Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class Main {

    public static void main(String[] args) throws Exception {
        String url = "jdbc:odbc:technical_library";
        String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
        String theStatement = "SELECT authid, lastname, firstname, email FROM authors ORDER BY authid";

        try {
            Class.forName(driver);
            Connection connection = DriverManager.getConnection(url, "guest", "guest");
            Statement queryAuthors = connection.createStatement();
            ResultSet results = queryAuthors.executeQuery(theStatement);

            String lastname, firstname, email;
            int id;
            while (results.next()) {
                id = results.getInt(1);
                lastname = results.getString(2);
                firstname = results.getString(3);
                email = results.getString(4);

                if (results.wasNull()) {
                    email = "no email";
                }
                System.out.println(Integer.toString(id) + ", " + lastname.trim() + ", " + firstname.trim() + ", "
                        + email.trim());
            }
            queryAuthors.close();
        } catch (Exception e) {
            System.err.println(e);
        }
    }
}