Lotto

중복없는 숫자6개 뽑기
package kim.dex.home;

public class Lotto {
 public static void main(String[] args) {
  int[] lottery = new int[6];
  for (int i = 0; i < 6; i++) {
   lottery[i] = (int) (Math.random() * 45) + 1;
   for (int j = 0; j < i; j++) {
    if (lottery[i] == lottery[j]) {
     i--;
    }
   }
  }

  for (int i = 0; i < 6; i++) {
   System.out.println(lottery[i]);
  }
 }
}