GANTENG

Pool.java

import java.util.Random;
public class Pool
{
    public static boolean validity(int min, int max){
        Random rd = new Random();
        int lottery1 = rd.nextInt(max-min)+min;
        int lottery2 = rd.nextInt(max-min)+min;
        int lottery3 = rd.nextInt(max-min)+min;
        System.out.println(lottery1);
        System.out.println(lottery2);
        System.out.println(lottery3);
        String lottery = lottery1+lottery2+lottery3+"";
        boolean check = true;
        for(int i=0;i<lottery.length()-1;i++){
            for(int a=i+1;a<lottery.length();a++){
                if(lottery.charAt(i)==lottery.charAt(a)){
                    return false;
                }
            }
        }
        return check;
    }
    public static void main(String[] kambing){
        System.out.println(validity(12,100));
    }
}