Java正则表达式用于$替换

Question

问题1
我正在尝试将我的字符串从“（a）更改为（b）正确的行”更改为“（a）2（b）正确的行”。 为此，我正在使用此代码，但它不能按我的要求工作

strtargetsentence=strtargetsentence_.replaceAll"([\(]([A-Za-z0-9])[\)][ ](to|and|or)[ ][\(]([A-Za-z0-9])[\)])","([\(]([A-Za-z0-9])[\)][ ](2|&|aur)[ ][\(]([A-Za-z0-9])[\)])"

同样，我也想做这些组合

(a) to (b)--->(a) 2 (b)
(b) to (e)--->(b) & (e)  
(1) to (2)--->(1) aur (2)

问题2。
对于这些组合，Silimarly我也尝试以下代码

[a] we are going ---->[a] we are going
1)we are going---->1)we are going

strtargetsentence=strtargetsentence_.replaceAll("([\\[|\\(])?([0-9A-Za-z]+)([\\.|\\)|\\]?])", "$1$2$3");

Answer 1

我认为您应该写几个正则表达式替换。 对于问题1，可能会导致出现以下三个替换语句：

String strtargetsentence_ = "(a) to (b)";
String pattern1 = "(\\(\\w\\)) to (\\(\\w\\))";
String pattern2 = "(\\(\\w\\)) and (\\(\\w\\))";
String pattern3 = "(\\(\\w\\)) or (\\(\\w\\))";
String strtargetsentence=strtargetsentence_.replaceAll(pattern1,"$1 2 $2")
        .replaceAll(pattern2,"$1 & $2")
        .replaceAll(pattern3,"$1 aur $2");
System.out.println(strtargetsentence);

您的第二个问题的替代内容可能是：

String strtargetsentence=strtargetsentence_.replaceAll("(\\[?\\w)(\\]|\\))( ?.*)", "$1$2$3");