Master Java Substrings: Build an Email Slicer for Beginners 📧

#java #javatutorial #javacourse

This is a beginner's introduction to substrings and we'll use it to code an email slicer that extracts a username and domain from an email address.

import java.util.Scanner;

public class Main {
public static void main(String[] args) {

// .substring() = A method used to extract a portion of a string
// .substring(start, end)

Scanner scanner = new Scanner(System.in);

String email;
String username;
String domain;

System.out.print("Enter your email: ");

email = scanner.nextLine();

if(email.contains("@")){
username = email.substring(0, email.indexOf("@"));
domain = email.substring(email.indexOf("@") + 1);

System.out.println(username);
System.out.println(domain);
}
else{
System.out.println("Emails must contain @");
}

scanner.close();
}
}