喵星人的星球

出至於
用陣列撰寫"樂透"程式

public class lotto
{

public static void main(String[] args)
 {
    int[] numbers = new int[7];
    outer:
    for (int i = 0; i < numbers.length; )
       {
        numbers[i] = (int)(Math.random() * 49) + 1;
        for (int j = 0; j < i ; ++j)
         {
            if (numbers[j] == numbers[i])
                continue outer;
          }
        ++i;
         }  
    java.util.Arrays.sort(numbers);
    for (int i = 0; i < numbers.length; ++i)
    System.out.print(numbers[i]+"\t");
    }
}