How to set max value for a variable without using an if statement

Question

I'm required to set a max value for a variable to 100:

double area = length * width;       
if (area > 100) { //set parameters for area    
    area = 100;
}

How can I code this in a way that works and doesn't require the use of 'if statement'?

Nothing. Exercise asks specifically to not use if statement. — Einstein Abridged
– Einstein Abridged, Commented Aug 13, 2017 at 6:25

Joe C · Accepted Answer · 2017-08-13 06:07:00Z

2

double area = Math.min(length * width, 100);

answered Aug 13, 2017 at 6:07

Joe C

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3 Comments

Einstein Abridged Over a year ago

Thanks. this was exactly what I was looking for. We aren't allowed to use if statements yet because we haven't started studying it yet I guess.

Joe C Over a year ago

I should give you fair warning, given that this is for an assignment: if you're not allowed to use if statements because you haven't learned them yet, I cannot guarantee you'd be allowed to use this either for the same reason.

Einstein Abridged Over a year ago

We have covered Math, Scanner etc so it's fine. I'll double check to make sure though. Thanks.

jackarms · Accepted Answer · 2017-08-13 06:07:12Z

2

You could try using Math.min, although I personally think it's less clear.

area = Math.min(area, 100);

answered Aug 13, 2017 at 6:07

jackarms

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1 Comment

ajb Over a year ago

It's a common enough idiom, though, that it will be clear to most readers.

cs95 · Accepted Answer · 2017-08-13 06:08:19Z

2

A ternary operator would work too:

double area = length * width;
area = area > 100.0? 100.0 : area;

If you don't mind calculating area twice, you can shorten this to a single line:

double area = (length * width) > 100.0 ? 100.0 : (length * width);

answered Aug 13, 2017 at 6:08

cs95

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