CODEWITHSUNDEEP
javarandom
swamp
swamp

Reputation: 396

Java generate random double between exclusive starting range and inclusive ending range

double num = min + Math.random() * (max - min);

This creates random double between [min, max). I would like to create random double between (min, max].

I have seen an approach that generates integers between [min, max], but the number here is integer and the starting range is inclusive.

Upvotes: 0

Views: 534

Answers (1)

Dawood ibn Kareem
Dawood ibn Kareem

Reputation: 79808

double num = max - Math.random() * (max - min);

This will produce numbers whose upper limit, max is inclusive, but whose lower limit, min is exclusive, because max is returned when Math.random() returns zero.

Upvotes: 3

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