Generate Random numbers in a specific range in Java

by Girish Rao


Recently I had to generate random numbers in a specific range, and I found that java.util.Random doesn’t have a function to do this. However, this functionality is present in ThreadLocalRandom.

###vTip: Use ThreadLocalRandom to generate random numbers in a range

import java.util.concurrent.ThreadLocalRandom;
//nextInt(int least,int bound)) is the method signature.
// nextInt is normally exclusive of the top value,
// so add 1 to bound to make it inclusive.
//example to generate values between 5 and 9