Java Matcher useAnchoringBounds() Method

The useAnchoringBounds(boolean b) method of Matcher class checks whether this matcher has anchoring bounds enabled or not. The anchoring bound has true value by default. If the anchoring bound is enabled, the start and end of input match the '^' and '$' meta-characters, otherwise not.

Syntax

Parameters

b - a boolean indicating whether or not to use anchoring bounds.

Returns

this matcher

Since

1.5

Example 1

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MatcheruseAnchoringBoundsExample1 {
 public static void main(String[] args) {
	      Pattern p = Pattern.compile("^<foo>");
	      Matcher m = p.matcher("<foo><bar><foo>"); 
	      m.useAnchoringBounds(true);
	      System.out.println(m.hasAnchoringBounds()); 
	   }
	}

Test it Now

Output of the above program:

true

Example 2

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MatcheruseAnchoringBoundsExample2 {
 public static void main(String[] args) {
	      Pattern p = Pattern.compile("^<foo>");
	      Matcher m = p.matcher("<foo><bar><foo>"); 
	      m.useAnchoringBounds(true);
	      System.out.println(m.hasAnchoringBounds()); 
	      while(m.find())
	      {
	    	  System.out.println(""+m);
	      }
	   }
	}

Test it Now

Output of the above program:

true
java.util.regex.Matcher[pattern=^<foo> region=0,15 lastmatch=<foo>]

Example 3

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MatcheruseAnchoringBoundsExample3 {
 public static void main(String[] args) {
	       Pattern p = Pattern.compile("<foo>*");
	      Matcher m = p.matcher("<foo><bar><foo>"); 
	      m.useAnchoringBounds(true);
	      System.out.println(m.hasAnchoringBounds()); 
	      while(m.find())
	      {
	    	  System.out.println(""+m);
	      }
	   }
	}

Test it Now

Output of the above program:

true
java.util.regex.Matcher[pattern=<foo>* region=0,15 lastmatch=<foo>]
java.util.regex.Matcher[pattern=<foo>* region=0,15 lastmatch=<foo>]

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Java Matcher class

Java Matcher useAnchoringBounds() Method

Syntax

Parameters

Returns

Since

Example 1

Example 2

Example 3

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