public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = br.readLine();
int countNum = 0;// 统计数字的个数
int countChar = 0;// 统计英文字母的个数
int countSpace = 0;// 统计空格的个数
int countOthers = 0;// 统计其它字符的个数
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (c >= '0' && (int) c <= '9') {
countNum++;
} else if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
countChar++;
} else if (c == ' ') {
countSpace++;
} else {
countOthers++;
}
}
System.out.println("数字个数:" + countNum);
System.out.println("英文字母个数:" + countChar);
System.out.println("空格个数:" + countSpace);
System.out.println("其他字符个数:" + countOthers);
}
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