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法律學Matcher toMatchResult() 方法在 Java 中的用法示例
java.util.regex.Matcher 類表示執行各種匹配操作的引擎。該類沒有建構函式，可使用 java.util.regex.Pattern 類的 matches() 方法建立/獲取該類的物件。
此 (Matcher) 的 toMatchResult() 方法會返回當前匹配器的匹配狀態。
示例 1
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ToMatchResultExample {
public static void main(String[] args) {
String str = "<p>This <b>is</b> an <b>example</b>.</p>";
//Regular expression to match contents of the bold tags
String regex = "<b>(\S+)</b>";
//Creating a pattern object
Pattern pattern = Pattern.compile(regex);
//Matching the compiled pattern in the String
System.out.println("State of the matcher: ");
Matcher matcher = pattern.matcher(str);
while (matcher.find()) {
System.out.println(matcher.toMatchResult());
String result = matcher.group(1);
}
matcher = matcher.reset("<p>this is another <b>line</b>.</p>");
matcher.find();
System.out.println("");
System.out.println("State of the matcher after resetting it: \n"+matcher.toMatchResult());
}
}輸出
State of the matcher: java.util.regex.Matcher[pattern=<b>(\S+)</b> region=0,40 lastmatch=<b>is</b>] java.util.regex.Matcher[pattern=<b>(\S+)</b> region=0,40 lastmatch=<b>example</b>] State of the matcher after resetting it: java.util.regex.Matcher[pattern=<b>(\S+)</b> region=0,35 lastmatch=<b>line</b>]
示例 2
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ToMatchResultExample {
public static void main(String[] args) {
String regex = "[#]";
System.out.println("Enter a string: ");
Scanner sc = new Scanner(System.in);
String input = sc.nextLine();
//Creating a pattern object
Pattern pattern = Pattern.compile(regex);
//Creating a Matcher object
Matcher matcher = pattern.matcher(input);
System.out.println("Match state: ");
//Finding the match
while(matcher.find()) {
System.out.println(matcher.toMatchResult());
}
}
}輸出
Enter a string: #This #is #a #sample #text Match state: java.util.regex.Matcher[pattern=[#] region=0,26 lastmatch=#] java.util.regex.Matcher[pattern=[#] region=0,26 lastmatch=#] java.util.regex.Matcher[pattern=[#] region=0,26 lastmatch=#] java.util.regex.Matcher[pattern=[#] region=0,26 lastmatch=#] java.util.regex.Matcher[pattern=[#] region=0,26 lastmatch=#]
更新於： 20-Nov-2019
209 次瀏覽
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