Is it necessary to put default statement always?

Answer 1

yes to avoid errors and make the code clean and understandable and if u dont wanna include default statement write ur code which doesnt need a default statement

Answer 2

No it's not compulsory but keeping in with the programming norms, one should have the default statement

Answer 3

nope!

Answer 4

its neccessary to use a default statement to avoid errors at runtime. using defaults is just like the try & catch.

its neccessary that every user can input anything they like. if their input doesnt match the cases in the switch statement, thats when the default statement comes in handy.