Use try-with-resources

Replace try statements that close a resource in the finally block with a
try-with-resources statement [1].

This commit was created automatically by Diffblue refactorings (https://www.diffblue.com/).

[1] https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html

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

@@ -37,11 +37,8 @@ public class SimpleFileWriter {
    * Constructor
    */
   public SimpleFileWriter(String filename, FileWriterAction action) throws IOException {
-    FileWriter writer = new FileWriter(filename);
-    try {
+    try (FileWriter writer = new FileWriter(filename)) {
       action.writeFile(writer);
-    } finally {
-      writer.close();
     }
   }
 }