http://gufeng99.lofter.com/post/1d146f3d_69c623b

        Scanner in = new Scanner(System.in);
        System.out.println("请输入一串整数并在输入时用英文逗号隔开：");
        String inputString = in.next();
        String[] stringArray = inputString.split(",");
        int[] nums=new int[stringArray.length];
        for(int i=0;i<stringArray.length;i++){
        nums[i]=Integer.parseInt(stringArray[i]);
        System.out.print(nums[i]+" ");
        }
        in.close();

运行效果如下：

请输入一串整数并在输入时用英文逗号隔开：
2,4,5,34,2,21
2 4 5 34 2 21