Java Regex多组匹配&提取 [英] Java Regex multiple groups match & extract

问题描述

假设我们有一句话：

"Hello my name is Neo and my company brand name is Company Country1. But we have also other companies like Company Country2 (in Europe), and also Company Country3 (in Asia)".

我想在匹配器中只对所有公司ContryX进行exctract / parse 。

I would like to exctract/parse in matcher only all Company ContryX.

你知道如何在正则表达式中匹配某些指定句子的所有出现（并得到那些）吗？

Do you know how to match in regex all occurences (and get those) of some specified sentence?

推荐答案

使用 Matcher.find 。

import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class App {

    public static void main(String[] args) throws IOException {

        String s = "Hello my name is Neo and my company brand name is Company Country1. "
                + "But we have also other companies like Company Country2 (in Europe), "
                + "and also Company Country3 (in Asia)";

        Pattern pattern = Pattern.compile("Company Country\\d");
        Matcher matcher = pattern.matcher(s);
        while (matcher.find()) {
            String group = matcher.group();
            System.out.println(group);
        }
    }
}

输出：

Company Country1
Company Country2
Company Country3

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