在java中对Unicode的字符比U+FFFF多吗?

How can I display a Unicode Character above U+FFFF using char in Java?

如何在Java中使用char在U+FFFF上显示Unicode字符?

I need something like this (if it were valid):

我需要这样的东西(如果它是有效的):

char u = '\u+10FFFF';

4 个解决方案

#1

You can't do it with a single char (which holds a UTF-16 code unit), but you can use a String:

您不能使用单个char(它持有一个UTF-16代码单元)，但是您可以使用字符串:

// This represents U+10FFFF
String x = "\udbff\udfff";

Alternatively:

另外:

String y = new StringBuilder().appendCodePoint(0x10ffff).toString();

That is a surrogate pair (two UTF-16 code units which combine to form a single Unicode code point beyond the Basic Multilingual Plane). Of course, you need whatever's going to display your data to cope with it too...

这是一个代理对(两个UTF-16代码单元，它们组合成一个单一的Unicode代码点，超出了基本的多语言平面)。当然，你需要什么来显示你的数据来处理它……

4 个解决方案

#1

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