java.lang.Character.isSupplementaryCodePoint(int codePoint) 確定指定字元(Unicode程式碼點)是否在補充字元範圍。
以下是java.lang.Character.isSupplementaryCodePoint()方法的宣告
public static boolean isSupplementaryCodePoint(int codePoint)
codePoint - 進行測試的字元(Unicode程式碼點)
如果指定的程式碼點是在MIN_SUPPLEMENTARY_CODE_POINT和MAX_CODE_POINT(含)之間此方法返回true,否則返回false。
NA
下面的例子顯示lang.Character.isSupplementaryCodePoint()方法的使用。
package com.yiibai; 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 ); } }
讓我們來編譯和執行上面的程式,這將產生以下結果:
cp1 represents a supplementary code point is true cp2 represents a supplementary code point is false