java 如何在Java中找到字符串模式
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How to find string pattern in Java
提问by user1705636
Here is a string like this in Java.
这是 Java 中这样的字符串。
String string="abc$[A]$def$[B]$ghi";
I want to search words that are located in $[*]$pattern. The result of above the string is A, B.
我想搜索位于$[*]$模式中的单词。上述字符串的结果是A, B。
回答by Nishant
String s = "abc$[A]$def$[B]$ghi";
Pattern p = Pattern.compile("\$\[.*?\]\$");
Matcher m = p.matcher(s);
while(m.find()){
String b = m.group();
System.out.println(">> " +b.substring(2, b.length()-2));
}
回答by dteoh
Use a regular expression. In Java, you can use the Pattern class.
使用正则表达式。在 Java 中，您可以使用Pattern 类。
回答by Philipp
You could use regular expressions for that. Take a look at the classes Patternand Matcher.
您可以为此使用正则表达式。看看类Pattern和Matcher。
The regular expression you would use in that case would be:
在这种情况下您将使用的正则表达式是：
$\[.*?\]$
Alternatively, you could work with String.indexOfand String.substr.
或者，您可以使用String.indexOf和String.substr。
