Tag Content Extractor HackerRank Solution

The program is designed to solve a common problem in web scraping and data extraction: retrieving the content enclosed within HTML tags. The user inputs a number of test cases, followed by the lines of HTML code for each case. The program then processes each line, looking for patterns that match HTML tags and their content.

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Here is the Tag Content Extractor HackerRank Solution HackerRank solution using CodeRankGPT:

The solution uses Java's built-in regular expression (regex) capabilities to identify and extract the content between HTML tags. A while loop is used to process each test case. Within this loop, another loop uses a Matcher to find all instances of the regex pattern in the line. If a match is found and the content is not empty, it is printed out. If no matches are found, 'None' is printed. The number of test cases is then decremented and the process repeats until all test cases have been handled.


/**
 * 
 */
package com.javaaid.hackerrank.solutions.languages.java.strings;

import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 */
public class TagContentExtractor {
	public static void main(String[] args) {

		Scanner in = new Scanner(System.in);
		int testCases = Integer.parseInt(in.nextLine());
		while (testCases > 0) {
			String line = in.nextLine();
			String regex = "<(.+)>([^<>]+)()";
			Pattern p = Pattern.compile(regex);
			Matcher m = p.matcher(line);
			int counter = 0;
			while (m.find()) {
				if (m.group(2).length() != 0) {
					System.out.println(m.group(2));
					counter++;
				}

			}
			if (counter == 0)
				System.out.println("None");
			testCases--;
		}
		in.close();
	}
}

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