public class DataCleaner {
    public static void main(String[] args) {
        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};

        int validSum = 0;
        int validCount = 0;

        for (int i = 0; i < sensorData.length; i++) {
            int value = sensorData[i];

            if (value == 999) {
                System.out.println("致命错误：传感器掉线，终止处理");
                break;
            }

            if (value <= 0 || value > 100) {
                System.out.println("警告：发现越界数据 " + value + "，已跳过");
                continue;
            }

            validSum += value;
            validCount++;
        }

        if (validCount > 0) {
            double average = (double) validSum / validCount;
            System.out.println("有效数据平均值：" + average);
        } else {
            System.out.println("无有效数据");
        }
    }
}