The hasTransparentBounds() method of Matcher Class is used to check if this matcher has transparent bounds or not. By transparent bounds, it means that the matcher will be matched for the matching pattern beyond the region boundaries for getting a match, if the transparent bounds are set to true. This method returns a boolean value stating the same.
Syntax:
public boolean hasTransparentBounds()
Parameters: This method takes no parameters.
Return Value: This method returns a boolean value stating whether this matcher has transparent bounds or not
Below examples illustrate the Matcher.hasTransparentBounds() method:
Example 1:
// Java code to illustrate hasTransparentBounds() 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); // Check if this matcher // has transparent bounds or not // using hasTransparentBounds() method System.out.println("Does this matcher" + " has transparent bounds: " + matcher .hasTransparentBounds()); }} |
Output:
Does this matcher has transparent bounds: false
Example 2:
// Java code to illustrate hasTransparentBounds() method import java.util.regex.*; public class GFG { public static void main(String[] args) { // Get the regex to be checked String regex = "(F*F)"; // Create a pattern from regex Pattern pattern = Pattern.compile(regex); // Get the String to be matched String stringToBeMatched = "GFGFGFGFGFGFGFGFGFG FGF GFG GFG FGF"; // Create a matcher for the input String Matcher matcher = pattern .matcher(stringToBeMatched); // set the transparent bounds to true matcher = matcher .useTransparentBounds(true); // Check if this matcher // has transparent bounds or not // using hasTransparentBounds() method System.out.println("Does this matcher" + " has transparent bounds: " + matcher .hasTransparentBounds()); }} |
Output:
Does this matcher has transparent bounds: true
Reference: https://docs.oracle.com/javase/9/docs/api/java/util/regex/Matcher.html#hasTransparentBounds–
