Matcher.useTransparentBounds () Method

Description

The java.util.regex.Matcher.useTransparentBounds(boolean b) method sets the transparency of region bounds for this matcher.

Declaration

Following is the declaration for java.util.regex.Matcher.useTransparentBounds(boolean b) method.

public Matcher useTransparentBounds(boolean b)

Parameters

• b − a boolean indicating whether or not to use transparent bounds.

Return Value

this matcher.

Example

The following example shows the usage of java.util.regex.Matcher.useTransparentBounds(boolean b) method.

package com.tutorialspoint;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MatcherDemo {
   private static final String REGEX = "(.*)(\\d+)(.*)";
   private static final String INPUT = "This is a sample Text, 1234, with numbers in between.";

   public static void main(String[] args) {
      // create a pattern
      Pattern pattern = Pattern.compile(REGEX);
      
      // get a matcher object
      Matcher matcher = pattern.matcher(INPUT); 
      matcher.useTransparentBounds(true);
      System.out.println(matcher.hasTransparentBounds());
   }
}

Let us compile and run the above program, this will produce the following result −

true