Validate user input for social security number in Java

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I want to validate the format of a social security number when initializing an object or using a setter to change the value of that object after its been made. Obviously this will be done via an if statement and a regex string but I do not know how to make that happen in Java.

I found this expression on a different site:

Regex : ^(?!000|666)[0-8][0-9]{2}-(?!00)[0-9]{2}-(?!0000)[0-9]{4}$ 

However i cannot tell if its accurate or not, nor do I understand the syntax to check user input against this.

setSocNum(String x){

if (![regex here]){
System.out.println("please enter a valid social security number")
}
}

I am unable to tell how to check against a regex string. If Someone can help me with the syntax here I could easily adapt it to other parts of the class I am working on. Thanks!

Java Regex to Validate SSN (Social Security Numbers , In this java regex tutorial, we will learn to use regular expressions to test whether a user has entered a valid Social Security number in your application or  In this java regex tutorial, we will learn to use regular expressions to test whether a user has entered a valid Social Security number in your application or website form. Valid SSN Number Format. United States Social Security numbers are nine-digit numbers in the format AAA-GG-SSSS with following rules.

Java Regular Expression to Validate Social Security Number (SSN , isSSNValid: Validate Social Security number (SSN) using Java regex. * This method checks if the input string is a valid SSN. * @param email String. Social  Therefore it is not a valid SSN (Social Security Number). Input: str = “856-452-6789”; Output: false Explanation: The second part of this string has 3 digits. Therefore it is not a valid SSN (Social Security Number).

You can use a Pattern to match the string with regex.

    private static Pattern socSecPattern = Pattern.compile("^(?!000|666)[0-8][0-9]{2}-(?!00)[0-9]{2}-(?!0000)[0-9]{4}$");

    private void setSocNum(String x){
        if (!socSecPattern.matcher(x).matches()){
            System.out.println("please enter a valid social security number")
        }
    }

It is a good idea to have the Pattern variable as be static since it will be called many times.

How to validate email, SSN, phone number in Java using Regular , For example, we can use Regular Expression to check whether the user input is a valid Social Security number, a valid phone number or a valid email number,  Valid SSN Number Format. United States Social Security numbers are nine-digit numbers in the format AAA-GG-SSSS with following rules. The first three digits called the area number. The area number cannot be 000, 666, or between 900 and 999. Digits four and five are called the group number and range from 01 to 99.

How to validate SSN (Social Security Number) using Regular , Given a string str, the task is to check whether the given string is valid SSN Input: str = “856-45-6789”; In Java, this can be done by using Pattern.matcher(). Java Regular Expression to Validate Social Security Number (SSN) Here is a utility method to check if a given String is a valid Social Security number using Java Regular Expression. /** isSSNValid: Validate Social Security number (SSN) using Java regex. * This method checks if the input string is a valid SSN.

Validate a Social Security Number (canadian), public class SSNUtils { /** * Validate a SSN number nnn nnn nnn */ public static 0) aSSN = args[0]; else { BufferedReader input = new BufferedReader(new  Format: DDD-DD-DDDD Enter SSN: 123-45-1234 123-45-1234 is a valid social security number. Format: DDD-DD-DDDD Enter SSN: 232-23223-2323- 232-23223-2323- is a INVALID social security number. Validate SSN posted by Justin Musgrove on 24 April 2016

HOW TO VALIDATE SOCIAL SECURITY NUMBER USING JAVA , Validate Social Security Numbers Problem You need to check whether a user has entered a NET, Java, JavaScript, PCRE, Perl, Python, Ruby If you're searching for Social Security numbers in a larger document or input string, replace the  I have imported a Scanner method, and sent out for the user ti imput a social security number. What I need help with is what to put in the body of each method. I need help to return true if there is 11 digits, if the numbers are in the right place, and if the dashes are in the right place.

Comments
  • I believe you should start with a finding of some information about how these numbers should look and what is considered as a valid number.
  • Do you have an example. From which country is the social security number?
  • One helpful site to test inputs versus regex is regex101.com for example, see here for your pattern being tested: regex101.com/r/fUFZm6/1
  • OK, so you need to store the pattern in a variable then just check for matches against the variable?
  • @DanMan3395: Yes, you should preferably create the Pattern object as static final so you don't have to create it again and again. I would recommend creating a method which takes your input and just returns the boolean value telling whether your input is a valid social security number or not. Let me add the code that I am suggesting in my answer.
  • oh i see what you mean. Instead of checking by creating the pattern every time I initialize and object I should use a checker method and just run that against each object as its made. Thanks!
  • thank you for translating the regex!