怎么显示字符串在另一个字符串中出现的次数
比如String a="acacacwerwac";
String b="ac";
显示四

[解决办法]

Java code

System.out.println(a.split(b).length);
[解决办法]
LS是什么答案。。 不管怎么显示都是四。。！！
[解决办法]
[code=Java] 
 String a =  "acacacwerwac "; 
 String b =  "ac "; 
 int i = 0; 
  
 Pattern p = Pattern.compile(b); 
 Matcher m = p.matcher(a); 
  
 while(m.find()){ 
      i++; 
 } 
 System.out.println(i); 
 [/code]
[解决办法]
Java code
public class Test {    public static void main(String[] args) {        String a = "acacacwerwac";        String b = "ac";        int count = count(a, b);        System.out.println(count);    }        private static int count(String src, String find) {        int count = 0;        int index = src.indexOf(find);         while(index > -1) {            count++;            index = src.indexOf(find, index + 1);        }        return count;    }}