Pattern Syntax Checker

import java.util.Scanner;
import java.util.regex.*;

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();
          	//Write your code
            testCases--;
              try
              {
                  Pattern.compile(pattern);
                  System.out.println("Valid");
              }catch(Exception e){
                  System.out.println("Invalid");
              }
		}
	}
}


Output:
Input (stdin)
    3
    ([A-Z])(.+)
    [AZ[a-z](a-z)
    batcatpat(nat

Expected Output
    Valid
    Invalid
    Invalid