java generate random double number in range code example

Example 1: java generate random integer in range

import java.util.concurrent.ThreadLocalRandom;

// nextInt is normally exclusive of the top value,
// so add 1 to make it inclusive
int randomNum = ThreadLocalRandom.current().nextInt(min, max + 1);

Example 2: how to generate randome number in desired range java

Random r = new Random();
int n = r.nextInt(49) + 1;