Adjust checkstyle rules. Make checkstyle fail the build when violations are found. Correct all current checkstyle violations.

execute-around/src/main/java/com/iluwatar/execute/around/App.java

@@ -17,9 +17,6 @@ public class App {
 
   /**
    * Program entry point
-   * 
-   * @param args command line args
-   * @throws IOException
    */
   public static void main(String[] args) throws IOException {
 

execute-around/src/main/java/com/iluwatar/execute/around/SimpleFileWriter.java

@@ -11,6 +11,9 @@ import java.io.IOException;
  */
 public class SimpleFileWriter {
 
+  /**
+   * Constructor
+   */
   public SimpleFileWriter(String filename, FileWriterAction action) throws IOException {
     FileWriter writer = new FileWriter(filename);
     try {