在字符串值搜索字符 [英] search a character in an String Value

问题描述

问题的变化。

我想找到一个字符串的字符是波斯语和英语字符。

i wanna find that an character in a String is Persian or English char.

在codeS搜索后，我发现这code在 PHP ： VAR UCS2 = text.search（/ [ ^ \\ x00- \\ x7D] /）= -1 可以在串放搜索;当发现是不等于UCS2价值的特性，返回-1;

after search in codes, i find that this code in PHP: var ucs2 = text.search(/[^\x00-\x7D]/) =-1 can search in an string & when find a character that was not equal to value of ucs2 , return -1 ;

什么是现在等于在Java和放这个命令code;的android？
我怎么可以在一个字符串搜索字符没有为 循环播放＆安培; 字符的数组？

now what is equal to this command code in java & android? how i can search a character in a string without a for Loop & a array of character?

推荐答案

这可能会帮助你...

this may help you...

它搜索基础上的ASCII code字符串中的字符。因此，你可以在很多语言使用...

It searches for a character in String based on it's ASCII code. thus you can use in many languages...

private static int searchCharacter(String string, char ch) {
    final int chASCII = (int) ch;
    return seachCharacter(string, chASCII);
}

private static int seachCharacter(String string, int chASCII) {
    if (string == null || string.isEmpty()) {
        return -1;
    }
    for (int i = 0; i < string.length(); i++) {
        char c = string.charAt(i);
        int cASCII = (int) c;
        if (chASCII == cASCII) {
            return i; // found at index i
        }
    }
    return -1;
}

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