java.time.MatchResult.end(int group)
方法返回在此匹配期間由給定組捕獲的子序列的最後一個字元之後的偏移量。
以下是java.time.MatchResult.end(int group)
方法的宣告。
int end(int group)
group
- 此匹配器模式中捕獲組的索引。最後一個字元匹配後的偏移量。
IllegalStateException
- 如果尚未嘗試匹配,或者上一個匹配操作失敗。以下範例顯示了java.time.MatchResult.end(int group)
方法的用法。
package com.yiibai;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MatchResultDemo {
private static final String REGEX = "(.*)(\\d+)(.*)";
private static final String INPUT = "This is a sample Text, 1234, with numbers in between.";
public static void main(String[] args) {
// create a pattern
Pattern pattern = Pattern.compile(REGEX);
// get a matcher object
Matcher matcher = pattern.matcher(INPUT);
if(matcher.find()) {
//get the MatchResult Object
MatchResult result = matcher.toMatchResult();
//Prints the offset after the last character of the subsequence captured by the given group during this match.
System.out.println("Second Capturing Group - Match String - end(1): "+result.end(1));
}
}
}
編譯並執行上面的程式,這將產生以下結果 -
Second Capturing Group - Match String - end(1): 26