How to validate Password Field in android?

Question

Hi I am very new for android and in my app I have Validations for Change password page.

That means the Password must contain minimum 8 characters at least 1 Alphabet

Answer 1

Passwords do not match

if  (password.getText().toString() != reEnteredPassword.getText().toString()) {
//not match
}

For Empty Fields

if (password.getText().toString().isEmpty() || reEnteredPassword.getText().toString().isEmpty()) {
//Fieds empty error message

Less than 8 characters

if ((password.getText().toString().length() < 8) || (reEnteredPassword.getText().toString().length() < 8)) {
// less than 8 characters error message
}

Not having special characters

if (!password.getText().toString().matches( "^(?=.*[0-9])(?=.*[a-z])(?=.*[!@#$%^&*+=?-]).{8,15}$") || !reEnteredPassword.getText().toString().matches( "^(?=.*[0-9])(?=.*[a-z])(?=.*[!@#$%^&*+=?-]).{8,15}$")){
//not having special characters error message
}