java方法:
法一:
package org.zhy.demo.algorithm; /** * 有一个字符串,其中包含中文字符、英文字符和数字字符,请统计和打印出各个字符的个数 * * @author Administrator * */ public class Str { public static void main(String[] args) { String str = "adasfAAADFD阿萨德发123"; int unicodeCount = 0; int szCount = 0; int zmCount = 0; for (int i = 0; i < str.length(); i++) { char c = str.charAt(i); if (c >= '0' && c <= '9') { szCount++; }else if((c >= 'a' && c<='z') || (c >= 'A' && c<='Z')){ zmCount++; }else{ unicodeCount++; } } System.out.println(unicodeCount); System.out.println(szCount); System.out.println(zmCount); } }