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KwickClips Java · 44 sec · free

Do ten menu choices need ten if statements?

Short answer. No. One switch with ten cases is clearer.

What does default do?

It runs when no case label matches.

Remember

One case per choice
break after each case
default for wrong input

Ten choices. Do you need ten if statements? No. Switch matches ch with each case. Break stops the next case running. Default catches a wrong number. Remember. One case per choice. Break after each case. Default handles wrong input.

This clip is from the full lesson: Menu-driven Programs with switch and System.exit — 8 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications, Programming All levels Java

More KwickClips from this lesson

Three points defining a menu-driven program, with an ATM-style list of numbered choices.What is a menu in a program?43 secA do-while loop wrapping a menu, repeating while the choice is not the exit number.Which loop suits a menu best?42 secA table comparing break, System.exit(0) and System.exit(1) and what each ends.Why did break not end my program?42 sec
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