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  1. Prepare
  2. Regex
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  4. HackerRank Language
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HackerRank Language

  • estevaopbsantos
     + 0 comments

    java code

    import java.io.*;
import java.util.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;

public class Solution {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Pattern pattern = Pattern.compile("\\d{5} (C|CPP|JAVA)"); // I couldn't put the entire string here due to the spam checker, but you get the point
        int n = Integer.parseInt(scanner.nextLine());
        for (int i = 0; i < n; i++) {
            Matcher matcher = pattern.matcher(scanner.nextLine());
            System.out.println((matcher.matches())? "VALID" : "INVALID");
        }
    }
}