字符串中重复出现字符串个数总结

 1   public static void main(String[] args) { 
 2         String a = "1;2;1;4;5;6;7;8;9;0"; 
 3         String[] b = a.split(";"); 
 4         for (int i = 0; i < b.length; i++) { 
 5             int count1 = substringCount(a, b[i]); 
 6             System.out.println(count1); 
 7             if (count1 > 1) { 
 8                 a = a.replace(b[i], ""); 
 9             } 
10         } 
11     } 
12  
13     public static int substringCount(String str, String substring) { 
14         if (str.contains(substring)) { 
15             String strReplaced = str.replace(substring, ""); 
16             return (str.length() - strReplaced.length()) / substring.length(); 
17         } 
18         return 0; 
19     }