Selecting the current browser using webdriver

private void selectBrowser(String browserTitle) {
 Set<String> windows = driver.getWindowHandles();
    for (String win : windows) {
    if (
       driver.switchTo().window(win).getTitle().contains(browserTitle)) {
       driver.switchTo().window(win);
       driver.switchTo().defaultContent();
        break;
        }
}