将英语数字转换为阿拉伯语的最佳方法 [英] Best way to convert English numbers to Arabic

问题描述

可能重复:
在Java中将字符串转换为另一个语言环境

Possible Duplicate:
Convert String to another locale in java

我想将包含英文数字的java String转换为阿拉伯数字，所以我做到了

I want to convert a java String that contains english numbers to arabic one's so i make this

int  arabic_zero_unicode= 1632;
String str = "13240453";
StringBuilder builder = new StringBuilder();

for(int i =0; i < str.length(); ++i ) {
    builder.append((char)((int)str.charAt(i) - 48+arabic_zero_unicode));
}

System.out.println("Number in English : "+str);
System.out.println("Number In Arabic : "+builder.toString() );

投入

Number in English : 13240453
Number In Arabic : ١٣٢٤٠٤٥٣

还有另一种更有效的方法吗?

is there another more efficient way to do this ?

推荐答案

这会比长度3036的版本提高5倍. 这还将检查以确保您仅更改数字.如果不执行if/else检查，则可以使速度提高6倍.

This gives a 5x speedup over your version with a string of length 3036. This also checks to make sure you're only changing digits. It's about a 6x speedup without the if/else check.

如果字符不正确/放错了位置，请原谅我.我不得不从另一个来源找到其中一些.

Please pardon me if the characters are incorrect/misplaced. I had to find some of them from another source.

char[] arabicChars = {'٠','١','٢','٣','٤','٥','٦','٧','٨','٩'};
StringBuilder builder = new StringBuilder();
for(int i =0;i<str.length();i++)
{
    if(Character.isDigit(str.charAt(i)))
    {
        builder.append(arabicChars[(int)(str.charAt(i))-48]);
    }
    else
    {
        builder.append(str.charAt(i));
    }
}
System.out.println("Number in English : "+str);
System.out.println("Number In Arabic : "+builder.toString() );

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