WebDriver - Handling listboxes

1. Select value from a listbox

public void selectValue(WebElement listbox, String value) {
        if (listbox != null && !value.isEmpty()) {
            List listValues = listbox.findElements(By.tagName("option"));
            for (WebElement option : listValues) {
                if (option.getText().equals(value)) {
                    option.setSelected();
                    break;
                }
            }
        }
    }

2. Get selected value from listbox

public String getSelectedValue(WebElement listbox) throws MyException {
        if (listbox == null) {
            throw new MyException("listboxValues = " + listbox);
        }
        List options = listbox.findElements(By.tagName("option"));
        for (WebElement option : options) {
            if (option.isSelected())
                return option.getText();
        }
        return null;
    }

3. Verfiy for a value in listbox
public boolean verifyListboxValue(WebElement listbox,String value) throws IllegalArgumentException {
        if (listbox == null) {
            throw new IllegalArgumentException("listboxValues = " + listbox);
        }
        List options = listbox.findElements(By.tagName("option"));
        for (WebElement option : options) {
            if (option.getText().equals(value))
                return true;
        }
        return false;
    }

 class MyException extends Exception{
.....
}