比这更有效的方式拆分？

Question

Is there a more efficient way of splitting a string than this?

String input = "=example>";
String[] split = input.split("=");
String[] split1 = split[1].split(">");
String result = split1[0];

The result would be "example".

Answer 1

String result = input.replaceAll("[=>]", "");

Very simple regex!

To learn more, go to this link: here

Answer 2

Do you really need regex. You can do:

String result = input.substring(1, input.length()-1);

Otherwise if you really have a case for regex then use character class :

String result = input.replaceAll("[=>]", "");

Answer 3

如果您只想从中获取示例，请执行以下操作：

input.substring(1, input.lastIndexOf(">"))

Answer 4

如果您的string始终为常量格式，请使用子字符串，否则请使用regex

result = result.substring(1, result.length() - 1); 

Answer 5

You can do it more elegant with RegEx groups:

String sourceString = "=example>";
// When matching, we can "mark" a part of the matched pattern with parentheses...
String patternString = "=(.*?)>";
Pattern p = Pattern.compile(patternString);
Matcher m = p.matcher(sourceString);
m.find();
// ... and access it later
String result = m.group(1);

Answer 6

You can try this regex: ".*?((?:[az][az]+))"

But it would be better when you use something like this:

String result = input.substring(1, input.length()-1);

Answer 7

尝试这个

String result = input.replace("[\\W]", "")

Answer 8

You can try this too

    String input = "=example>";
    System.out.println(input.replaceAll("[^\\p{L}\\p{Nd}]", ""));

This will remove all non-words characters

Answer 9

Regex可以完美地完成这项工作，但是只要为将来的解决方案添加新功能，您还可以使用第三方库（例如Google的Guava），它为您的项目添加了许多功能，并且Splitter确实有助于解决类似您的问题有。