Conexao com o access

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

public Connection conexao;
private String stringConexao = "jdbc:ucanaccess://";
private String caminho = "";
private String driver = "net.ucanaccess.jdbc.UcanaccessDriver";

private final String usuario = "";
private final String senha = "";

public Conexao() {
}

public Connection conectar() {
    if (this.conexao == null) {
        try {
            Class.forName(this.driver);
            this.conexao = DriverManager.getConnection(this.stringConexao + this.caminho, this.usuario, this.senha);
            System.out.println("Conectado com Sucesso!");
        } catch (ClassNotFoundException | SQLException ex) {
            System.out.println("Falha na Conexão!");
            System.out.println(ex.toString());
        }
    }
    return this.conexao;
}