java判断三个整数是否相邻

Question

Answer 1

public class TestMain {
    public static void main(String[] args) {
        // 判断三个整数是否相邻
        List<Integer> list = new ArrayList<>();
        System.out.println("请输入三个数");
        Scanner scanner = new Scanner(System.in);
        for (int i = 0; i < 3; i++) {
            list.add(scanner.nextInt());
        }
        System.out.println("三个数为: " + list.toString());
        System.out.println("三个整数是否相邻: true相邻，false:不相邻: ");
        System.out.println(judgeAdjacent(list));
    }

    public static String judgeAdjacent(List<Integer> list) {
        if (list.size() < 3) {
            return "FALSE";
        }
        int a = list.get(0);
        int b = list.get(1);
        int c = list.get(2);

        if (((Math.abs(a - b) <= 2) && (Math.abs(b - c) <= 2) && (Math.abs(c - a) <= 2) && ((a - b) * (b - c) * (c - a) != 0))) {
            return "TRUE";
        } else {
            return "FALSE";
        }
    }
}

运行结果：