JAVA EE: How to use find method of matcher class | Java Regex | Java Regular Expressions

Tuesday 19 December 2017

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RegexDemo.java

import java.util.regex.Matcher;

import java.util.regex.Pattern;



public class RegexDemo

{

    public static void main(String[] args)

    {

        String input = "TV Price is 500 Rs";

        String regex = "(.*)(\\d+)(.*)";



        /*
         * Parameters:
         * 
         * regex - The expression to be compiled
         * 
         * Returns:
         * 
         * the given regular expression compiled into a pattern
         * 
         */

        Pattern patternObj = Pattern.compile(regex);



        /*
         * Parameters:
         * 
         * input - The character sequence to be matched
         * 
          * Returns:
         * 
         * A new matcher for this pattern
         */

        Matcher matcher = patternObj.matcher(input);

        /*
         * Returns:
         * 
         * true if, and only if, a subsequence of the input sequence
         * matches this matcher's pattern
         */

        System.out.println(matcher.find());

    }



}