I have folowing code:
public class RegexTestPatternMatcher {
public static final String EXAMPLE_TEST = "This is my first photo.jpg string and this my second photo2.jpg String";
public static void main(String[] args) {
Pattern pattern = Pattern.compile("\\w+\\.jpg");
Matcher matcher = pattern.matcher(EXAMPLE_TEST);
// check all occurance
while (matcher.find()) {
System.out.println(matcher.group());
}
}
}
输出结果如下:
photo.jpg
photo2.jpg
我想选择第一个匹配项,只需要photo.jpg,跳过第二个photo2.jpg,我尝试了matcher.group(0),但没有效果,您有任何想法如何做到这一点吗?谢谢。
matcher.find()
和matcher.group()
一次即可? - Jerry