import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class ConnectAccess {

static String rutaDB;
static String user;
static String pass;
static String sql;

public static String getRutaDB() {
    return rutaDB;
}
public void setRutaDB(String rutaDB) {
    ConnectAccess.rutaDB = rutaDB;
}

public static String getUser() {
    return user;
}
public void setUser(String user) {
    ConnectAccess.user = user;
}

public static String getPass() {
    return pass;
}
public void setPass(String pass) {
    ConnectAccess.pass = pass;
}

public static String getSql() {
    return sql;
}
public void setSql(String sql) {
    ConnectAccess.sql = sql;
}




public void conectar(){
    try{
        Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");

        Connection con = DriverManager.getConnection("jdbc:ucanaccess://"+rutaDB,user,pass);
        Statement st = con.createStatement();
        ResultSet rs = st.executeQuery(sql);

        while(rs.next()){
            System.out.println(rs.getString("Usuario"));
            System.out.println(rs.getString("Contraseña"));
            System.out.println(rs.getString("Permiso"));
        }

    }catch(Exception e){
        e.printStackTrace();
    }
}

}

public class Main {

public static void main(String args[]){

    ConnectAccess ca = new ConnectAccess();

    ca.setRutaDB("C:/Users/USUARIO/Desktop/usuarios.accdb");
    ca.setUser(null);
    ca.setPass(null);
    ca.setSql("SELECT * FROM usuarios WHERE Usuario=admin");
    ca.conectar();
}

}

net.ucanaccess.jdbc.UcanaccessSQLException: UCAExc:::3.0.6 usuario no tiene privilegios suficientes o objeto no encontrado: ADMIN
    at net.ucanaccess.jdbc.UcanaccessStatement.executeQuery(UcanaccessStatement.java:211)
    at ConnectAccess.conectar(ConnectAccess.java:50)
    at Main.main(Main.java:12)
Caused by: java.sql.SQLSyntaxErrorException: usuario no tiene privilegios suficientes o objeto no encontrado: ADMIN
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
    at org.hsqldb.jdbc.JDBCStatement.executeQuery(Unknown Source)
    at net.ucanaccess.jdbc.UcanaccessStatement.executeQuery(UcanaccessStatement.java:208)
    ... 2 more
Caused by: org.hsqldb.HsqlException: usuario no tiene privilegios suficientes o objeto no encontrado: ADMIN
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.error.Error.error(Unknown Source)
    at org.hsqldb.ExpressionColumn.checkColumnsResolved(Unknown Source)
    at org.hsqldb.QueryExpression.resolve(Unknown Source)
    at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source)
    at org.hsqldb.ParserCommand.compilePart(Unknown Source)
    at org.hsqldb.ParserCommand.compileStatements(Unknown Source)
    at org.hsqldb.Session.executeDirectStatement(Unknown Source)
    at org.hsqldb.Session.execute(Unknown Source)
    ... 5 more

public class Main {

public static void main(String args[]){

    ConnectAccess ca = new ConnectAccess();

    ca.setRutaDB("C:/Users/USUARIO/Desktop/usuarios.accdb");
    ca.setUser(null);
    ca.setPass(null);
    ca.setSql("SELECT * FROM usuarios WHERE Usuario='admin' ");
    ca.conectar();
}

}

public class Main {

public static void main(String args[]){

   ConnectAccess ca = new ConnectAccess();

   ca.setRutaDB("C:/Users/USUARIO/Desktop/usuarios.accdb");
   ca.setUser(null);
   ca.setPass(null);
   ca.setSql("SELECT * FROM usuarios WHERE Usuario=admin");
   ca.conectar();
   }

}