In the sequence diagram at the top of the "Find command" section of the developer guide, the two "alt" blocks each have a case "no matches" found in which nothing is done (i.e. no methods executed, no return arrow, etc.)
As per the course convention, an "opt" block should have been used, rather than an "alt" block, if there was no else condition.
In the sequence diagram at the top of the "Find command" section of the developer guide, the two "alt" blocks each have a case "no matches" found in which nothing is done (i.e. no methods executed, no return arrow, etc.)
As per the course convention, an "opt" block should have been used, rather than an "alt" block, if there was no else condition.