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KwickClips Java · 41 sec · free

How does a menu program work?

Short answer. It prints numbered choices, reads the number, and a switch runs that job.

What does case 2 calculate here?

The perimeter, 2 * (l + b).

Remember

Print choices, read a number
switch runs the chosen job

One program, many jobs. The user picks by number. Show the choices, then read the choice ch. Choice one finds the area. Choice two finds the perimeter. Remember. Print the choices and read a number. Switch runs the job.

This clip is from the full lesson: Conditional Constructs: if, if-else-if and switch — 6 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 10 Information Technology (402), CBSE Class 11 Information Technology (802), CBSE Class 12 Information Technology (802), ICSE Class 9 Computer Applications

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