Refactored all solutions

Java/Strings/Pattern Syntax Checker/Solution.java

@@ -6,14 +6,12 @@ import java.util.Scanner;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
 
-/* If a PatternSyntaxException is not thrown by Pattern.compile,
-   then the regular expression is valid.
-*/
+// If a PatternSyntaxException is not thrown by Pattern.compile, the regular expresion is valid
 public class Solution {
-    public static void main(String[] args){
+    public static void main(String[] args) {
         Scanner scan = new Scanner(System.in);
         int testCases = Integer.parseInt(scan.nextLine());
-        while (testCases-- > 0){
+        while (testCases-- > 0) {
            String pattern = scan.nextLine();
            try {
                Pattern.compile(pattern);