Hackerrank String- Pattern Syntax Error

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

public class Solution {
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int testCases = Integer.parseInt(in.nextLine());
    while (testCases > 0) {
      String pattern = in.nextLine();
      try {
        Pattern.compile(pattern);
        System.out.println("Valid");
      } catch (PatternSyntaxException e) {
        System.out.println("Invalid");
      }
      testCases--;
    }
  }
}

biryu2205 / Biryu

Hackerrank String- Pattern Syntax Error #72