Random integer between lo and hi interval

 
public class Main {

  public static int randomInteger(int lo, int hi) {
    java.util.Random rn = new java.util.Random();
    int n = hi - lo + 1;
    int i = rn.nextInt() % n;
    if (i < 0){
      i = -i;
    }
      
    return lo + i;
  }
}