Pattern matcher(CharSequence) method in Java with Examples

The matcher(CharSequence) method of the Pattern class used to generate a matcher that will helpful to match the given input as parameter to method against this pattern. The Pattern.matcher() method is very helpful when we need to check a pattern against a text a single time, and the default settings of the Pattern class are appropriate. 

Syntax:

public Matcher matcher(CharSequence input)

Parameters: This method accepts a single parameter input which represents the character sequence to be matched. 

Return Value: This method returns a new matcher for this pattern. 

Below programs illustrate the matcher(CharSequence) method: 

Program 1: 

found the Regex in text:geeksforgeeks starting index:0 and ending index:13

Program 2: 

No match found

References: https://docs.oracle.com/javase/10/docs/api/java/util/regex/Pattern.html#matcher(java.lang.CharSequence)