Java正则表达式打印字

我想打印包含图案的单词。例如，在下面的字符串中，您希望打印agg_day_adv_campaign_demand_fact

您可以简单地将字符串拆分为单词，然后逐个检查单词以搜索您的模式。

regex\w*\u fact将完成此操作。

    String text =
              "FROM dt_dim AS d, "+
              "adj_dim AS adj " +
              "cam_dim AS cam, " +
              "agg_day_adv_campaign_demand_fact AS fact ";

    Pattern FACT_PAT = Pattern.compile("(\\S+_fact)");
    Matcher m = FACT_PAT.matcher(text);
    if (m.find()){
        System.out.println(m.group(1));
    }

你可以在这里测试这个正则表达式

---

您错误地忘记发布您的尝试：我相信您已经按下了“询问问题”按钮，而不是“请求代码”按钮。为了获得建设性的答案，您必须始终向我们展示您自己解决问题的尝试，以及预期和收到的输出/错误消息。谢谢JosefN。上面的代码只打印正则表达式，即。但要求是打印完整的单词。我已经解决了：，很抱歉

    String text =
              "FROM dt_dim AS d, "+
              "adj_dim AS adj " +
              "cam_dim AS cam, " +
              "agg_day_adv_campaign_demand_fact AS fact ";

    Pattern FACT_PAT = Pattern.compile("(\\S+_fact)");
    Matcher m = FACT_PAT.matcher(text);
    if (m.find()){
        System.out.println(m.group(1));
    }

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

public class Main {

    public static void main(String[] args) {
        String text    =
                "FROM dt_dim AS d, "+
                        "adj_dim AS adj " +
                        "cam_dim AS cam, " +
                        "agg_day_adv_campaign_demand_fact AS fact ";
        Pattern pattern = Pattern.compile("\\w*_fact");
        Matcher matcher = pattern.matcher(text);
        while (matcher.find()) {
            System.out.println("Found the text " + matcher.group()+  "starting at " + matcher.start()
                    + " index and ending at index " + matcher.end());
            System.out.println(text.substring(matcher.start(), matcher.end()));
        }
    }
}