1 package calssString;
 2 
 3 public class codePointCount___1_4 {
 4     public static void main(String[] args) {
 5         String strCom = "I LIKE JAVA";
 6         int strLower = strCom.codePointCount(2,9);
 7         System.out.println(strLower);
 8 
 9         strCom = "I LIKE J愛VA";
10         strLower = strCom.codePointCount(2,9);
 
11         System.out.println(strLower);
12 
13         strCom = "I LIKE J1VA";
14         strLower = strCom.codePointCount(2,9);
15         System.out.println(strLower);
16     }
17 }

java_函數手冊_String_1.2_codePointCount_獲取指定範圍文本代碼點