彩票问题 不输出相同的数字

public class TestCar {

    public static void main(String[] args) {
        // TODO 自动生成的方法存根

int[] cp = new int[7];

        Random r = new Random();

        r.nextInt(36);

        for (int i = 0; i < cp.length; i++)
        {
            int t = r.nextInt(36);

            if(t == 0)
            {
                i--;
                continue;
            }
            else
            {
                boolean h = false;

                for(int c : cp)
                {
                    if(c == t)
                    {
                        i--;

                        h = true;

                        break;
                    }
                }
                if(h)
                {
                    continue;
                }

            }

            cp[i] = t;
        }
        for (int c : cp)
        {
            System.out.print(c + " ");
        }

    }

}

public class TestCar {

    public static void main(String[] args) {
        // TODO 自动生成的方法存根

        int[] cp = new int[7];

        Random r = new Random();

        String str = "";

        for (int i = 0;i <cp.length;i++)
        {
            int t = r.nextInt(36);

            if(t == 0)
            {
                i--;
                continue;
            }
            else
            {
                if(str.indexOf(""+t) >= 0)
                {
                    i--;
                    continue;
                }
            }
            str = str + t +" ";
        }

        System.out.print(str);

    }
}