Java.lang.Character.isSupplementaryCodePoint() 方法

描述

java.lang.Character.isSupplementaryCodePoint(int codePoint)判断指定字符（Unicode码点）是否在补充字符范围内。

声明

以下是 java.lang.Character.isSupplementaryCodePoint() 方法的声明。

public static boolean isSupplementaryCodePoint(int codePoint)

参数

codePoint − 要测试的字符（Unicode 代码点）

返回值

如果指定的代码点介于 MIN_SUPPLEMENTARY_CODE_POINT 和 MAX_CODE_POINT 之间，则此方法返回 true，否则返回 false。

异常

NA

示例

下面的例子展示了 lang.Character.isSupplementaryCodePoint() 方法的使用。

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 );
   }
}

让我们编译并运行上面的程序，这将产生下面的结果 −

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