How would you give random limits in java?

Question

So let\'s say you want to generate a random number, but you want it to be UNDER a specified amount. Is this possible?

Answer 1

The answers provided here are correct if you are looking for an integer. However, if you are not looking for an integer random number, I think the below solution would work.

If you want a random number between 50 and 100, use this:

randomNumber = 50+(Math.random()*50);

Answer 2

Random rand = new Random();
int randInt = rand.nextInt( 16 ); //Generates a number in [0, 1, .., 15]

Documentation at: http://docs.oracle.com/javase/7/docs/api/java/util/Random.html#nextInt(int)

Answer 3

Use the following method random.nextInt(upperBound).