Java 字符串操作-从字符串中删除字符

我目前在java中有以下字符串：

"Blah, blah, blah,~Part One, Part Two~,blah blah"

我需要删除~字符之间的逗号，使其显示为

"Blah, blah, blah,~Part One Part Two~,blah blah"

有人能帮我吗

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非常感谢，

我还没有测试过这个，但我会做一些类似的事情：

string sample = "Blah, blah, blah,~Part One, Part Two~,blah blah";
Regex r = new Regex("(.+)\\~(.+),(.+)\\~(.+)","${1}~${2}${3}~${4}");
r.replaceAll(sample );

我引用了。在这里，+匹配一个或多个任意字符。可以找到更多这样的模式

上述印刷品：

a,b,c,d,e,f
a,b,~c~,d,e
~abcde~
a,b,c,~def~,g,h,i,~jkl~m,n,o~qr~s,t,u

工作原理 有4例：

我们在绳子的开头，外面 只要在找到第一个之前进行匹配，下次我们就可以进去了 所以，^[^~]*~ 直到绳子的尽头，再也没有了~ 如果有偶数的~，我们就在外面 比赛到最后 所以，[^~]*$ 如果不是上面提到的，我们就在里面 继续在~之前找到下一个逗号，这样我们仍然在里面 所以，[^，~]*，不要捕捉逗号！ 如果我们找到~而不是逗号，那么就出去，然后再回到下一个~ 所以，[^，~]*[^~]*~ 在所有情况下，我们都要确保捕获足够的数据来重建字符串

工具书类 , 相关问题 PHP版本

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以下是一种可以完成这项工作的方法：

public String deleteCharacterBetween(String deleteFrom, String betweenChar, String charToRemove) {
    int nextIndex = 0, index = 0;
    while (true) {
        index = deleteFrom.indexOf(betweenChar, nextIndex);
        nextIndex= deleteFrom.indexOf(betweenChar, index + 1);
        if (nextIndex < 0 || index < 0)
            return deleteFrom;
        String before = deleteFrom.substring(0, index);
        String toEdit = deleteFrom.substring(index, nextIndex);
        String after = deleteFrom.substring(nextIndex);
        toEdit = toEdit.replace(charToRemove, "");
        deleteFrom = before + toEdit + after;
    }
}

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~在字符串中出现的具体次数是多少？它总是两次还是任意偶数次？它们总是封装一个字符串，所以总是在成对的开头，在24分钟内。我让步了。

String text = "Blah, blah, blah,~Part One, Part Two~,blah blah,~Part One, Part Two~,blah blah";
Pattern pattern = Pattern.compile("~[^~]+~");
Matcher matcher =pattern.matcher(text);
StringBuffer sb = new StringBuffer();
while(matcher.find()) {
    matcher.appendReplacement(sb, matcher.group(0).replaceAll(",", ""));
}
matcher.appendTail(sb);
text = sb.toString();

public String deleteCharacterBetween(String deleteFrom, String betweenChar, String charToRemove) {
    int nextIndex = 0, index = 0;
    while (true) {
        index = deleteFrom.indexOf(betweenChar, nextIndex);
        nextIndex= deleteFrom.indexOf(betweenChar, index + 1);
        if (nextIndex < 0 || index < 0)
            return deleteFrom;
        String before = deleteFrom.substring(0, index);
        String toEdit = deleteFrom.substring(index, nextIndex);
        String after = deleteFrom.substring(nextIndex);
        toEdit = toEdit.replace(charToRemove, "");
        deleteFrom = before + toEdit + after;
    }
}

String a = "Blah, blah, blah,~Part One, Part Two~,blah blahBlah, blah, blah,~Part One, Part Two~,blah blah";
System.out.println(deleteCharacterBetween(a, "~", ","));