Matcher regionEnd() method in Java with Examples
Last Updated :
27 Nov, 2018
The regionEnd() method of Matcher Class is used to get the endIndex of the region to be matched by the pattern in the current matcher. This method returns an integer value which is the endIndex of the region of this matcher.
Syntax:
public int regionEnd()
Parameters: This method takes no parameters.
Return Value: This method returns a integer value which is the endIndex of the region of this matcher.
Below examples illustrate the Matcher.regionEnd() 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 Geeks for For Geeks Geek" ;
Matcher matcher
= pattern.matcher(stringToBeMatched);
System.out.println( "Before changing region, "
+ " Region ends from: "
+ matcher.regionEnd());
matcher = matcher.region( 0 , 10 );
System.out.println( "After changing region, "
+ " Region ends from: "
+ matcher.regionEnd());
}
}
|
Output:
Before changing region, Region ends from: 38
After changing region, Region ends from: 10
Example 2:
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
String regex = "(F*F)" ;
Pattern pattern = Pattern.compile(regex);
String stringToBeMatched
= "GFGFGFGFGFGFGFGFGFG FGF GFG GFG FGF" ;
Matcher matcher
= pattern.matcher(stringToBeMatched);
System.out.println( "Before changing region, "
+ " Region ends from: "
+ matcher.regionEnd());
matcher = matcher.region( 0 , 5 );
System.out.println( "After changing region, "
+ " Region ends from: "
+ matcher.regionEnd());
}
}
|
Output:
Before changing region, Region ends from: 35
After changing region, Region ends from: 5
Reference: https://docs.oracle.com/javase/9/docs/api/java/util/regex/Matcher.html#regionEnd–
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