Get Random Number Between Given Range in Java [duplicate]

This question already has an answer here:

• Generating random integers in a specific range 40 answers

How to Get Random Number Between Given Range in Java if minimum is more than 1? for example if i want to get random number between 6 to 20. currently i am using this code

Random rand = new Random(); 
int  rnd = rand.nextInt(499) + 1;

it is working well, but if i change 1 to some high number for example 6, it will not work properly, i want to get random number that is between 6 and 20. is it possible using above function ?