given a number let machine guess don't lie

MachineGuessNumber.java

import java.util.Random;
import java.util.Scanner;

/**
 * given a number let machine guess don't lie
 * 0 - true 1 -false
 */
public class MachineGuessNumber {
    public static void main(String args[]) {

        boolean right = false;
        Scanner keyboard = new Scanner(System.in);
        int min = 0;
        int max = 1000;
        int number = givenANumber(min, max);
        while (!right) {
            System.out.println(number);
            System.out.println("right? 0-true 1-false");
            int i = keyboard.nextInt();
            if (i == 0) {
                right = true;
                System.out.println("exit.");
            } else {
                System.out.println("lower? 0-true 1-false");
                int lower = keyboard.nextInt();
                if (lower == 0) {
                    min = number + 1;
                } else {
                    max = number - 1;
                }
                number = givenANumber(min, max);
            }
        }
    }

    public static int givenANumber(int min, int max) {
        Random r = new Random();
        return r.ints(min, (max + 1)).findFirst().getAsInt();
    }
}