Java.lang.Character.charCount() 方法

package com.codingdict;



import java.lang.*;



public class CharacterDemo {



   public static void main(String[] args) {



      // create and assign values to int codepoint cp

      int cp = 0x12345;



      // create an int res

      int res;



      // assign the result of charCount on cp to res

      res = Character.charCount(cp);



      String str1 = "It is not a valid supplementary character";

      String str2 = "It is a valid supplementary character";



      // print res value

      if ( res == 1 ) {

         System.out.println( str1 );

      } else if ( res == 2 ) {

         System.out.println( str2 );

      }

   }

}