How to use the Random util?

Question

I went searching for examples and i found this one:
import java.util.Random;

public class RandInt
{
public static void main(String[] args)
{
//define the range
int min = 1;
int max = 100;

Random r = new Random();
int num = r.nextInt((max - min) + 1) + min;
System.out.println(num);
}
}
explanation please?

Answer 1

The nextInt, this method call returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive). This means that you will get numbers from 0 to 100 in your case. So you've done everything correctly by adding "1" to that number. Now range is from 1 to 100.