Selenium : Display frame name and switch using frame names

Selenium : Display frame names when frame id is not present

List<WebElement> ele = driver.findElements(By.tagName("frame"));
                System.out.println("Number of frames in a page :" + ele.size());
                for(WebElement el : ele){
                  //Returns the Id of a frame.
                    System.out.println("Frame Id :" + el.getAttribute("id"));
                  //Returns the Name of a frame.
                    System.out.println("Frame name :" + el.getAttribute("name"));
                }