A simple class to check connections with JDBC

Connector.java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;

public class Connector {
    private static final String USERNAME = "username";
    private static final String PASSWORD = "password";
    private static final String HOST = "localhost";
    private static final short PORT = 3306;
    private static final String DBNAME = "mysql";

    private static final String CONNECTION_STRING = "jdbc:mysql://" + HOST + ':' + PORT + '/' + DBNAME;

    public static void main(String[] args) {
        (new Connector()).run();
    }

    public void run() {
        Connection conn = null;

        try {
            // Try to find driver class
            Class.forName("com.mysql.jdbc.Driver");

            conn = getConnection();
            System.out.println(conn.toString());
        } catch (SQLException e) {
            System.err.println("Error with connection");
            e.printStackTrace(System.err);
        } catch (ClassNotFoundException e) {
            System.err.println("Driver class not found");
            e.printStackTrace(System.err);
        } finally {
            if (conn != null) {
                try {
                    conn.close();
                    System.out.println("Connection closed");
                } catch (SQLException e) {
                    e.printStackTrace(System.err);
                }
            }
        }
    }

    public Connection getConnection() throws SQLException {
        Connection conn = null;
        final Properties connectionProps = new Properties();
        connectionProps.put("user", USERNAME);
        connectionProps.put("password", PASSWORD);

        conn = DriverManager.getConnection(CONNECTION_STRING, connectionProps);

        System.out.println("Connected to database");
        return conn;
    }
}