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法律學Java 中帶有示例的 Matcher regionEnd() 方法
java.util.regex.Matcher 類表示執行各種匹配操作的引擎。此類沒有建構函式，使用 java.util.regex.Pattern 類的 matches() 方法建立/獲取此類的物件。
此（Matcher）類的 regionEnd() 方法返回一個整數值表示當前匹配器物件的結束索引。
示例 1
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegionEndExample {
public static void main(String[] args) {
String regex = "(.*)(\d+)(.*)";
String input = "This is a sample Text, 1234, with numbers in between.";
//Creating a pattern object
Pattern pattern = Pattern.compile(regex);
//Creating a Matcher object
Matcher matcher = pattern.matcher(input);
//Setting the region of the matcher
matcher.region(5, 20);
if(matcher.matches()) {
System.out.println("Match found");
} else {
System.out.println("Match not found");
}
System.out.print("End of the region: "+matcher.regionEnd());
}
}輸出
Match not found End of the region: 20
示例 2
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegionEndExample {
public static void main(String[] args) {
//Regular expression to accepts 6 to 10 characters
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);
//Setting region to the input string
matcher.region(2, 4);
//Switching to transparent bounds
if(matcher.find()) {
System.out.println("Match found");
} else {
System.out.println("Match not found");
}
System.out.println("Ending of the region: "+ matcher.regionEnd());
}
}輸出
Enter a string: this is sample text # Match not found Ending of the region: 4
更新於： 20-11-2019
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