How to validate a gmail address in java?

by lindsey.homenick , in category: Third Party Scripts , a month ago

How to validate a gmail address in java?

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1 answer

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by dana , a month ago

@lindsey.homenick 

One way to validate a Gmail address in Java is to use regular expressions. Here is a sample code that shows how to validate a Gmail address using a regular expression:

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import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ValidateGmailAddress {
    public static void main(String[] args) {
        String email = "[email protected]";

        // Regular expression for a Gmail address
        String regex = "^[a-zA-Z0-9_+&*-]+(?:\.[a-zA-Z0-9_+&*-]+)*@(?:gmail)\.com$";

        // Compile the regex
        Pattern pattern = Pattern.compile(regex);

        // Match the email address with the regex
        Matcher matcher = pattern.matcher(email);

        // Check if the email address is valid
        if (matcher.matches()) {
            System.out.println("Valid Gmail address");
        } else {
            System.out.println("Invalid Gmail address");
        }
    }
}


In this code, we have defined a regular expression that matches a Gmail address. The regex checks for the pattern of letters, digits, and special characters before the @ symbol, followed by the domain gmail.com.


We then compile the regex using the Pattern class and create a Matcher object to match the email address with the regex pattern. If the email address matches the pattern, it is considered a valid Gmail address.


You can customize the regex pattern based on your specific needs and requirements for validating a Gmail address.