sqlcon = DriverManager.getConnection(SQLConnection.getUrl(),
SQLConnection.getUser(), SQLConnection.getPassword());

SQLConnection.getUrl() = "jdbc:mysql://localhost:3306/dataValdb"
SQLConnection.getUser() = "root"
SQLConnection.getPassword() = "mypassword"

An exception occurred:
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException
MESSAGE: Client does not support authentication protocol requested by server; consider upgrading MySQL client