Matcher类的appendTail(StringBuilder)方法的行为类似于append-and-replace方法。此方法读取输入字符串,并将其附加到给定StringBuilder的末尾位置。
用法:
public StringBuilder appendTail(StringBuilder builder)
参数:此方法采用参数构建器,该参数构建器是存储目标字符串的StringBuilder。
返回值:此方法返回替换了目标String的StringBuilder。
下面的示例说明Matcher.appendTail()方法:
示例1:
// Java code to illustrate appendTail() method
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
// Get the regex to be checked
String regex = "(Geeks)";
// 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);
System.out.println("Before Replacement: "
+ stringToBeMatched);
// Get the String to be replaced
String stringToBeReplaced = "GFG";
StringBuilder builder = new StringBuilder();
// Replace every matched pattern
// with the target String
while (matcher.find()) {
matcher
.appendReplacement(builder,
stringToBeReplaced);
}
// Add the replaced string at the tail
// using the appendTail() method
matcher.appendTail(builder);
// Print the replaced matcher
System.out.println("After Replacement: "
+ builder.toString());
}
}
输出:
Before Replacement: GeeksForGeeks Geeks for For Geeks Geek After Replacement: GFGForGFG GFG for For GFG Geek
示例2:
// Java code to illustrate appendTail() 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
= " FGF GFG GFG FGF";
// Create a matcher for the input String
Matcher matcher
= pattern.matcher(stringToBeMatched);
System.out.println("Before Replacement: "
+ stringToBeMatched);
// Get the String to be replaced
String stringToBeReplaced = "Geeks";
StringBuilder builder = new StringBuilder();
// Replace every matched pattern
// with the target String
while (matcher.find()) {
matcher
.appendReplacement(builder,
stringToBeReplaced);
}
// Add the replaced string at the tail
// using the appendTail() method
matcher.appendTail(builder);
// Print the replaced matcher
System.out.println("After Replacement: "
+ builder.toString());
}
}
输出:
Before Replacement: FGF GFG GFG FGF After Replacement: Geeks GFG GFG Geeks
相关用法
- Java Matcher end()用法及代码示例
- Java Matcher end(int)用法及代码示例
- Java Matcher start(int)用法及代码示例
- Java Matcher lookingAt()用法及代码示例
- Java Matcher group(int)用法及代码示例
- Java Matcher matches()用法及代码示例
- Java Matcher hasAnchoringBounds()用法及代码示例
- Java Matcher reset()用法及代码示例
- Java Matcher start()用法及代码示例
- Java Matcher pattern()用法及代码示例
- Java Matcher hasTransparentBounds()用法及代码示例
- Java Matcher toMatchResult()用法及代码示例
- Java Matcher groupCount()用法及代码示例
- Java Matcher toString()用法及代码示例
- Java Matcher requireEnd()用法及代码示例
注:本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 Matcher appendTail(StringBuilder) method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。