How to extract Specific string from a subject line in sfdc

Question

My requirement is to extract specific string from a email subject like.

My email subject always like:

Fleet Invoice inv - account name

I need to extract account name from above subject line.

Always they use same specific template.

Answer 1

The Apex String class provides a lot of useful methods.

In your case, I'd use the substringAfter(separator) method to get the end of your String after the '-' character. Like this:

String accountName = yourSubject.substringAfter(' - ');