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;
     }
 }