java.lang.Character.isIdentifierIgnorable(int codePoint) 確定指定字元(Unicode程式碼點)應被視為一個可忽略的字元在Java識別符號或Unicode識別符號。
下面Unicode字元都忽略了Java識別符號或Unicode識別符號:
不是空白的ISO控制字元
'u0000' 通過 'u0008'
'u000E' 通過 'u001B'
'u007F' 通過 'u009F'
具有格式FORMAT普通類值的所有字元
以下是java.lang.Character.isIdentifierIgnorable()方法的宣告
public static boolean isIdentifierIgnorable(int codePoint)
codePoint - the character (Unicode code point) to be tested
This method returns true if the character is an ignorable control character that may be part of a Java or Unicode identifier, false otherwise.
NA
The following example shows the usage of lang.Character.isIdentifierIgnorable() method.
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 = 0x008f; cp2 = 0x0abc; // create 2 boolean primitives b1, b2 boolean b1, b2; // assign isIdentifierIgnorable results of cp1, cp2 to b1, b2 b1 = Character.isIdentifierIgnorable(cp1); b2 = Character.isIdentifierIgnorable(cp2); String str1 = "cp1 is an ignorable control character is "+b1; String str2 = "cp2 is an ignorable control character 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 is an ignorable control character is true cp2 is an ignorable control character is false