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Matcher find() method in Java with Example
The java.util.regex.Matcher class represents an engine that performs various match operations. There is no constructor for this class you can create/obtain an object of this class using the matches() method of the class java.util.regex.Pattern.
The find() method of this class tries to find the next subsequent input matching the current Matcher object, in case of the match this method returns true else it returns false.
Example
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class FindExample {
public static void main( String args[] ) {
//Reading string value
Scanner sc = new Scanner(System.in);
System.out.println("Enter input string");
String input = sc.nextLine();
//Regular expression to find digits
String regex = "(\D)";
//Compiling the regular expression
Pattern pattern = Pattern.compile(regex);
//Retrieving the matcher object
Matcher matcher = pattern.matcher(input);
//verifying whether match occurred
if(matcher.find()) {
System.out.println("Given string contain non-digit characters");
} else {
System.out.println("Given string does not contain non-digit characters");
}
}
}Output
Enter input string 11245# Given string contain non-digit characters
Updated on: 19-Nov-2019
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