📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

arrange-act-assert/src/main/java/com/iluwatar/arrangeactassert/Cash.java

@@ -23,18 +23,17 @@
 
 package com.iluwatar.arrangeactassert;
 
+import lombok.AllArgsConstructor;
+
 /**
  * Arrange/Act/Assert (AAA) is a unit test pattern. In this simple example, we have a ({@link Cash})
  * object for plus, minus and counting amount.
  */
+@AllArgsConstructor
 public class Cash {
 
   private int amount;
 
-  Cash(int amount) {
-    this.amount = amount;
-  }
-
   //plus
   void plus(int addend) {
     amount += addend;