在这个else里想判断数组中是否有重复输入的数该怎么改呢

Question

Answer 1

        int size = 4;
        Scanner in = new Scanner(System.in);
        List<Integer> input = new ArrayList<Integer>();
        for(int i = 0; i < size; i++) {
            int number = in.nextInt();
            if(input.contains(number)) {
                System.out.println("重复了");
                break;
            }
            input.add(number);
        }
        
        System.out.println(Arrays.toString(input.toArray()));

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