Java Exception Class problem: I am trying to create my own exception class and have an error thrown when a user puts a social security number with the wron format but I am getting a build fail error that says:

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - unreported exception InvalidCustomerException; must be caught or declared to be thrown

at Main.main(Main.java:14)

My code:

public class Main { public static void main(String[] args) { Customer cust = new Customer("Alin", "Parker", "12333-45-6789"); System.out.println(cust); } }

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public class Customer { protected String firstName; protected String lastName; protected String socialSecurity; Customer(String firstName, String lastName, String socialSecurity) throws InvalidCustomerException { this.firstName = firstName; this.lastName = lastName; if(!socialSecurity.matches("\\d{3}-\\d{2}-\\d{4}")) { InvalidCustomerException f = new InvalidCustomerException(); throw f; } this.socialSecurity = socialSecurity; } @Override public String toString() { return "customer is " + firstName + lastName + socialSecurity ; } }

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public class InvalidCustomerException extends Exception{ String socialSecurity; InvalidCustomerException() { super(); this.socialSecurity = socialSecurity; } @Override public String getMessage() { return "social security number: " + socialSecurity + " is invalid"; } }