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  1. Prepare
  2. Java
  3. Strings
  4. Pattern Syntax Checker
  5. Discussions

Pattern Syntax Checker

  • dpdebashisparida
     + 0 comments

    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();

              try{
              Pattern p = Pattern.compile(pattern);
              System.out.println("Valid");
          }catch(Exception e){
              System.out.println("Invalid");
          }
          testCases--;
    }
    in.close();
}

    }