Application does not detect incorrect user input and print the appropriate error message

[nshian]

When incorrect user input is given, e.g. "gg/" in this example, the application still permits it as valid input.

[nus-se-bot]

Team's Response

No details provided by team.

The 'Original' Bug

[The team marked this bug as a duplicate of the following bug]

mcs input exception not catch

invalid input for mcs can be processed

---

_{[original: nus-cs2113-AY2223S1/pe-interim#876] [original labels: severity.High type.FunctionalityBug]}

Their Response to the 'Original' Bug

[This is the team's response to the above 'original' bug]

No details provided by team.

Items for the Tester to Verify

:question: Issue duplicate status

Team chose to mark this issue as a duplicate of another issue (as explained in the Team's response above)

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

---

:question: Issue severity

Team chose [severity.Medium] Originally [severity.Low]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

---