Java字符串中的字符数 [英] Number of characters in Java String

问题描述

可能重复:
Java:使用unicode时的字符串长度覆盖以显示平方根?

Possible Duplicate:
Java: length of string when using unicode overline to display square roots?

如何获取字符串中的Unicode字符数?

How do I get number of Unicode characters in a String?

给出泰语字符char[]:

[อ, ภ, ิ, ช, า, ต, ิ]

这在String中显示为: อภิชาติ

This comes out in String as: อภิชาติ

String.length()返回7.我理解(技术上)有7个字符，但是我需要一种可以返回5的方法.这就是屏幕上显示的字符空间的确切数目.

String.length() returns 7. I understand there are (technically) 7 characters, but I need a method that would return me 5. That is the exact number of character spaces represented on screen.

推荐答案

似乎您只是不想将unicode标记算作单独的字符；

Seems you just want to not count the unicode marks as separate characters;

static boolean isMark(char ch)
{
    int type = Character.getType(ch);
    return type == Character.NON_SPACING_MARK ||
           type == Character.ENCLOSING_MARK ||
           type == Character.COMBINING_SPACING_MARK;
}

可以用作；

String olle = "อภิชาติ";
int count = 0;

for(int i=0; i<olle.length(); i++)
{
    if(!isMark(olle.charAt(i)))
        count++;
}

System.out.println(count);

并返回"5".

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