public class DBConnectionProvider {

private static DBConnectionProvider provider;

private String dbDriver;
private String dbUrl;
private String dbUsername;
private String dbPassword;

private Connection connection;

private DBConnectionProvider() {
    try {
        loadProperties();
        Class.forName(dbDriver);
    } catch (Exception e) {
        throw new RuntimeException("Failed to " +
                "initialize DB Connection Provider", e);
    }
}

private void loadProperties() throws IOException {
    Properties properties = new Properties();
    properties.load(new FileInputStream("C:\Users\ADMIN\IdeaProjects\Design\src\main\resources\db\config.properties""));


    dbDriver = properties.getProperty("db.driver");
    dbUrl = properties.getProperty("db.url");
    dbUsername = properties.getProperty("db.username");
    dbPassword = properties.getProperty("db.password");