java统计一个字符串中中文，英文，数字的个数

用java统计字符串中中文，英文，数字各多少个！

public class CountCharacter {
	
	public static void main(String[] args) {
		String str = "哈回家看电视hello1234567890";
		
		int length = str.length();
		
		int nLen = length - str.replaceAll("\\d", "").length();
		int eLen = length - str.replaceAll("[a-zA-Z]", "").length();
		int cLen = length - nLen - eLen;
		
		System.out.println("num:"+nLen);
		System.out.println("english:"+eLen);
		System.out.println("chinese:"+cLen);
	}

}