Checking against a Folder Tree.

I need some help. I'm currently calling to a SQL database, and reading those records. I need to be able to take the data from the groupId field and check to see if there has been a Folder created with that name. If so, move onto the next record. If not, then create that Folder with the name of the groupId. I just can't get it to work properly. I have the call to the SQL database correct, but can't seem to get a Folder check/create working. This is my current code:

Code:

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package *;

import *.TestBean;

import java.io.File;

import java.sql.*;
 
import java.util.ArrayList;
import java.util.List;

public class Test_run2 {
  private static Test_run2 instance;
 
  /**
  * @return a object.
  */
  public static Test_run2 getInstance() {
    if (instance == null) {
      instance = new Test_run2();
    }
    return instance;
  }
 
 
  private Test_run2() {
    super();
  }
 
  /**
  * Retrieve a test beans
  *
  */
  public List<TestBean> getIDList() throws SQLException {
    List<TestBean>  testBeans = new ArrayList<TestBean>();
    Connection conn =
      DriverManager.getConnection("jdbc:oracle:thin:Username/Password@Database:PORT:DEV");
    String sql = "select ID,GROUPID from TBL";
    PreparedStatement pstmt = conn.prepareStatement(sql);
    ResultSet rset = pstmt.executeQuery();
    TestBean testBean = null;
    String devId = null;
    String groupId = null;
     
    while (rset.next()) {
      testBean = new TestBean();
      devId = rset.getString(1);
      groupId = rset.getString(2);
      testBean.setDevId(devId);
      testBean.setGroupId(groupId);
      testBeans.add(testBean);
       
      if (groupId.equals("NAME OF FOLDER")) {
          System.out.println("GROUP ID EQUALS NAME OF FOLDER");
      } else {
          System.out.println("DOESN'T EQUAL FOLDER"+groupId);
      }
       
    }
 
    rset.close();
    pstmt.close();
    conn.close();
 
    return testBeans;
  }
 
  public static void main(String[] args) {
    List<TestBean> beans;
    try {
      beans = Test_run.getInstance().getIDList();
      int count = 0;
      for (TestBean testBean:beans) {
        count++;
      }
      System.out.println("count=<"+count+">");
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }
}

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Any help is appreciated! Thanks!