Matcher reset(CharSequence) method in Java with Examples
Last Updated :
26 Nov, 2018
The reset(CharSequence input) method of Matcher Class is used to reset this matcher and insert the input String passed as the parameter to this matcher.
Syntax:
public Matcher reset(CharSequence input)
Parameters: This method takes the parameter input which is the String to be inserted into matcher after getting reset.
Return Value: This method returns this Matcher after being reset with this input.
Below examples illustrate the Matcher.reset() method:
Example 1:
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
String regex = "Geeks" ;
Pattern pattern
= Pattern.compile(regex);
String stringToBeMatched = "GeeksForGeeks" ;
Matcher matcher
= pattern
.matcher(stringToBeMatched);
System.out.println( "Current Matcher: "
+ matcher.toMatchResult());
String newStringToBeMatched
= "GeeksGeeksGeeks" ;
matcher = matcher
.reset(newStringToBeMatched);
System.out.println( "Current Matcher after Reset: "
+ matcher.toMatchResult());
}
}
|
Output:
Current Matcher: java.util.regex.Matcher[pattern=Geeks region=0,13 lastmatch=]
Current Matcher after Reset: java.util.regex.Matcher[pattern=Geeks region=0,15 lastmatch=]
Example 2:
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
String regex = "GFG" ;
Pattern pattern = Pattern.compile(regex);
String stringToBeMatched
= "GFGFGFGFGFGFGFGFGFG" ;
Matcher matcher
= pattern
.matcher(stringToBeMatched);
System.out.println( "Current Matcher: "
+ matcher.toMatchResult());
String newStringToBeMatched
= "GFG means GeeksForGeeks" ;
matcher = matcher
.reset(newStringToBeMatched);
System.out.println( "Current Matcher after Reset: "
+ matcher.toMatchResult());
}
}
|
Output:
Current Matcher: java.util.regex.Matcher[pattern=GFG region=0,19 lastmatch=]
Current Matcher after Reset: java.util.regex.Matcher[pattern=GFG region=0,23 lastmatch=]
Reference: Oracle Doc
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