Java中的 Matcher quoteReplacement(String) 方法和示例

Java中的 Matcher quoteReplacement(String) 方法及示例

Matcher 类的quoteReplacement(String 字符串)方法用于获取作为参数传递的 String 的替换字符串字面量量。此字符串字面量充当替换方法的参数。因此，quoteReplacement() 方法充当替换方法中的中间体。

句法：

public static String quoteReplacement(String string)

参数：此方法接受一个参数字符串，该字符串是匹配器中要替换的字符串。

返回值：此方法返回一个字符串字面量，它是匹配器的替换字符串。

下面的示例说明了 Matcher.quoteReplacement() 方法：

示例 1：

// Java code to illustrate quoteReplacement() method
  
import java.util.regex.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Get the regex to be checked
        String regex = "Geek";
  
        // Create a pattern from regex
        Pattern pattern = Pattern.compile(regex);
  
        // Get the String to be matched
        String
            stringToBeMatched
            = "GeeksForGeeks Geeks for For Geeks Geek";
  
        // Create a matcher for the input String
        Matcher matcher
            = pattern
                  .matcher(stringToBeMatched);
  
        // Get the String to be replaced
        String stringToBeReplaced = "Geeks";
  
        // Get the String literal
        // using quoteReplacement() method
        System.out.println(
            matcher
                .quoteReplacement(stringToBeReplaced));
    }
}

输出：

Geeks

示例 2：

// Java code to illustrate quoteReplacement() method
  
import java.util.regex.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Get the regex to be checked
        String regex = "FGF";
  
        // Create a pattern from regex
        Pattern pattern
            = Pattern.compile(regex);
  
        // Get the String to be matched
        String
            stringToBeMatched
            = "GFGFGFGFGFGFGFGFGFG FGF GFG GFG FGF";
  
        // Create a matcher for the input String
        Matcher matcher
            = pattern.matcher(stringToBeMatched);
  
        // Get the String to be replaced
        String stringToBeReplaced = "GFG";
  
        // Get the String literal
        // using quoteReplacement() method
        System.out.println(
            matcher
                .quoteReplacement(stringToBeReplaced));
  
        System.out.println(
            matcher
                .replaceAll(
                    matcher
                        .quoteReplacement(
                            stringToBeReplaced)));
    }
}

输出：

GFG
GGFGGGFGGGFGGGFGGFG GFG GFG GFG GFG

参考： Oracle 文档