कस्टमर एंगेजमेंट के लिए ईमेल फिल्टर करना और गिनना

public class CompanyEmailFilter {
    public static void main(String[] args) {
        List emails = new ArrayList<>();
        emails.add("[email protected]");
        emails.add("[email protected]");
        emails.add("[email protected]");
        emails.add("[email protected]");

        // Convert list to Stream
        Stream stream = emails.____();
        long count = stream
        	// Filter email ends with "@company.com"
            .____(email -> email.endsWith("@company.com"))
            // Count matching emails
            .____();
        
        System.out.println("Total company emails: " + count);
    }
}