Introduction

In Java, SSN validation is crucial in applications dealing with personal identification and data processing. Java's java.util.regex package provides the means for regex-based SSN validation.

SSN Regex

Java regex for SSN validation follows the standard 3-2-4 digit format.

The SSN Regex Pattern

• Pattern: ^\\d{3}-\\d{2}-\\d{4}$

• This matches SSNs in the "XXX-XX-XXXX" format.

How to Validate SSNs in Java?

To validate SSNs in Java:

import java.util.regex.*;
public class SSNValidator {
    public static boolean isValidSSN(String ssn) {
        String regex = "^\\d{3}-\\d{2}-\\d{4}$";
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(ssn);
        return matcher.matches();
    }
    public static void main(String[] args) {
        String ssn = "123-45-6789";
        System.out.println("Is SSN valid? " + isValidSSN(ssn));
    }
}

Uses of SSN Regex Validation

1. Personal Data Validation: Ensuring the format of SSNs in user registration, forms, and data entry systems.

2. Regulatory Compliance: Adhering to legal standards in applications processing sensitive personal data.

What next?

Java’s regex functionality is ideal for SSN validation, ensuring data accuracy and compliance. Akto's regex validator can further enhance this process, accommodating a variety of SSN formats and validation requirements.