Java中判断字符串中相同字符的个数

public static int countStr(String str1, String str2) {           int counter=0;          if (str1.indexOf(str2) == -1) {                return 0;          }               while(str1.indexOf(str2)!=-1){                  counter++;                  str1=str1.substring(str1.indexOf(str2)+str2.length());              }              return counter;        }   

转载于:https://www.cnblogs.com/yanduanduan/p/4884697.html