解决：Scanner输入数字总是莫名其妙多个0

用BufferedInputStream解决

Scanner scanner = new Scanner(new BufferedInputStream(System.in));
System.out.println("---Please input 3 integers like this: 1 2 3---");
int count = 0;
int[] container = new int[3];
while (scanner.hasNextInt()) {
    container[count++] = scanner.nextInt();
    if (count == container.length) {
        break;
    }
}