Hi

Can someone help me with sending an email via Apex class?

Scenario:
Recipient: sammypuppy09876@gmail.com
Sender: no_reply@sammypuppy.com
Subject: "User Login Failed" 
Text: "My Custom Text with one field from above user record" 

I did workflow as well to sent out the email, but now I wanted to do same customization via Apex code (learning curve).

Thanks