Variable expected error when using matchs to validate year length in Java

What’s wrong with my syntax here?

boolean isValid() = false;

policyHolder().getYear().matches("^\\d{4}$") ? isValid = true : isValid = false;

Note: policyHolder().getYear() is a String.

I’m checking the year value has 4 digits but get an error saying Variable expected.

>Solution :

Use ternary operator in correct way:

isValid = policyHolder().getYear().matches("^\\d{4}$") ? true : false;

Or simply:

isValid = policyHolder().getYear().matches("^\\d{4}$");