Java Character getDirectionality()方法

java.lang.Character.getDirectionality(int codePoint) 返回给定字符(Unicode代码点)的Unicode方向属性。字符指向来计算文本的视觉顺序。未定义字符的指向值为 DIRECTIONALITY_UNDEFINED。

1 语法

public static byte getDirectionality(int codePoint)

2 参数

codePoint：该字符(Unicode代码点)属性指向要求

3 返回值

此方法返回字符的方向属性。

4 示例 

package com.yiidian;

/**
 * 一点教程网： http://www.yiidian.com
 */
/**
 * Java Character getDirectionality()方法
 */
import java.lang.*;

public class CharacterDemo {

   public static void main(String[] args) {

      // create 2 int primitives cp1, cp2
      int cp1, cp2;

      // assign values to cp1, cp2
      cp1 = 0x2323;
      cp2 = 0x2c60;

      // create 2 byte primitives b1, b2
      byte b1, b2;

      // assign directionality of cp1, cp2 to b1, b2
      b1 = Character.getDirectionality(cp1);
      b2 = Character.getDirectionality(cp2);

      /**
       *  byte value 13  represents DIRECTIONALITY_OTHER_NEUTRALS
       *  byte value -1  represents DIRECTIONALITY_UNDEFINED
       */
       
      String str1 = "Directionality of cp1 is " + b1;
      String str2 = "Directionality of cp2 is " + b2;

      // print b1, b2 values
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

输出结果为：

Directionality of cp1 is 13 
Directionality of cp2 is -1