char[] c = { '6', 's', 'd', '7', 'g', '文', '中' };
		int z = 0;
		int s = 0;
		int y = 0;
		for (char x : c)
			switch ((int) x / 10) {
			case 4:
				s++;
				break;
			case 5:
				s++;
				break;
			case 6:
				y++;
				break;
			case 7:
				y++;
				break;

			case 8:
				y++;
				break;
			case 9:
				y++;
				break;
			case 10:
				y++;
				break;
			case 11:
				y++;
				break;
			case 12:
				y++;
				break;
			default:
				z++;
			}

		System.out.println("数字字符有" + s);
		System.out.println("英文字符有" + y);
		System.out.println("中文字符有" + z);