public class App {

    public static  final  String JDBC_DRIVER = "com.mysql.jdbc.Driver";
    public static final String JDBC_URL = "jdbc:mysql://localhost/sample";
    public static final String JDBC_USER = "root";
    public static final String JDBC_PASSWORD = "";

    public static void main (String[] args) throws SQLException, ClassNotFoundException {
        Statement statement = null;
        try{
            Class.forName(JDBC_DRIVER);
            Connection connection = DriverManager.getConnection(JDBC_URL, JDBC_USER, JDBC_PASSWORD);
            statement = connection.createStatement();
            ResultSet resultSet = statement.executeQuery("select id, firstname, lastname, email " +
                    "from customer");
            System.out.println("First nametLast nametEmail");
            int count = 0;
            while (resultSet.next()){
                String firstname = resultSet.getString("firstname");
                String lastname = resultSet.getString("lastname");
                String email = resultSet.getString("email");
                System.out.printf("%st%st%s%n", firstname, lastname, email);
                count++;
            }
            System.out.println("--");
            System.out.println(MessageFormat.format("Rows: {0}", count));
        } finally {
            if(statement != null){
                statement.close();
            }
        }
    }
}

Connection to MySQL – sample@localhost failed: Exception in thread “main” java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:190)
    at com.intellij.persistence.database.console.RemoteJdbcServer.main(RemoteJdbcServer.java:15)