如何在Java字符串中搜索模式？
Java提供了 java.util.regex包，用于与正则表达式进行模式匹配。然后，您可以使用此软件包的类和方法在Java字符串中搜索模式。
示例
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegexMatches {
public static void main( String args[] ) {
String line = "This order was placed for QT3000! OK?";
String pattern = "(.*)(\\d+)(.*)";
Pattern r = Pattern.compile(pattern);
Matcher m = r.matcher(line);
if (m.find( )) {
System.out.println("Found value: " + m.group(0));
System.out.println("Found value: " + m.group(1));
System.out.println("Found value: " + m.group(2));
}else{
System.out.println("NO MATCH");
}
}
}输出结果
Found value: This order was placed for QT3000! OK? Found value: This order was placed for QT300 Found value: 0
热门推荐
10 新年门口花束祝福语简短
11 盘锦结婚祝福语大全简短
12 父母生日祝福语 简短独特
13 家庭恩爱祝福语简短英文
14 高考俄语祝福语大全简短
15 虎年祝福语 诗句唯美简短
16 生日婚礼祝福语简短精辟
17 虎年喝酒拜年祝福语简短
18 教师闺蜜祝福语简短