//TODO: Replace this with your own logic
private boolean isTelLenthLegal(String tel) {
        //TODO: Replace this with your own logic
        return tel.length() == 11;
    }
private boolean isTelLenthLegal(String tel) {
//TODO: Replace this with your own logic
return tel.length() == 11;
}
private boolean isTelLenthLegal(String tel) {
//TODO: Replace this with your own logic
return tel.length() == 11;
}
private boolean isTelLenthLegal(String tel) {
//TODO: Replace this with your own logic
return tel.length() == 11;
}