Java Java.lang.Character.isSupplementaryCodePoint()用法及代碼示例

描述

這個java.lang.Character.isSupplementaryCodePoint(int codePoint)確定指定的字符(Unicode 代碼點)是否在增補字符範圍內。

聲明

以下是聲明java.lang.Character.isSupplementaryCodePoint()方法

public static boolean isSupplementaryCodePoint(int codePoint)

參數

codePointâˆ' 要測試的字符(Unicode 代碼點)

返回值

如果指定的代碼點在 MIN_SUPPLEMENTARY_CODE_POINT 和 MAX_CODE_POINT 之間(含)，則此方法返回 true，否則返回 false。

異常

NA

示例

下麵的例子展示了 lang.Character.isSupplementaryCodePoint() 方法的用法。

現場演示

package com.tutorialspoint;

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 = 0x10ffd;
      cp2 = 0x004ca;

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

      /**
       *  check if cp1, cp2 are in supplementary character range
       *  and assign results to b1, b2
       */
      b1 = Character.isSupplementaryCodePoint(cp1);
      b2 = Character.isSupplementaryCodePoint(cp2);

      String str1 = "cp1 represents a supplementary code point is " + b1;
      String str2 = "cp2 represents a supplementary code point is " + b2;

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

讓我們編譯並運行上麵的程序，這將產生以下結果——

cp1 represents a supplementary code point is true
cp2 represents a supplementary code point is false