Grammatical fixes to command pattern

iluwatar · iluwatar · commit 7a4617439154 · 2021-06-09T08:05:24.000+03:00
diff --git a/command/README.md b/command/README.md
@@ -1,4 +1,4 @@
----
+ ---
 layout: pattern
 title: Command
 folder: command
@@ -19,7 +19,7 @@ Encapsulate a request as an object, thereby letting you parameterize clients wit
 requests, queue or log requests, and support undoable operations.
 
 ## Explanation
-Real world example
+Real-world example
 
 > There is a wizard casting spells on a goblin. The spells are executed on the goblin one by one.
 > The first spell shrinks the goblin and the second makes him invisible. Then the wizard reverses
@@ -135,7 +135,7 @@ public class Goblin extends Target {
 }
 ```
 
-Finally we have the wizard in main function who casts spell
+Finally, we have the wizard in the main function casting spells.
 
 ```java
 public static void main(String[] args) {
@@ -202,22 +202,22 @@ Use the Command pattern when you want to:
 * Parameterize objects by an action to perform. You can express such parameterization in a
 procedural language with a callback function, that is, a function that's registered somewhere to be
 called at a later point. Commands are an object-oriented replacement for callbacks.
-* Specify, queue, and execute requests at different times. A Command object can have a lifetime
+* Specify, queue, and execute requests at different times. A Command object can have a life
 independent of the original request. If the receiver of a request can be represented in an address
 space-independent way, then you can transfer a command object for the request to a different process
 and fulfill the request there.
 * Support undo. The Command's execute operation can store state for reversing its effects in the
 command itself. The Command interface must have an added un-execute operation that reverses the
 effects of a previous call to execute. The executed commands are stored in a history list.
-Unlimited-level undo and redo is achieved by traversing this list backwards and forwards calling
-un-execute and execute, respectively.
+Unlimited-level undo and redo functionality is achieved by traversing this list backward and forward 
+  calling un-execute and execute, respectively.
 * Support logging changes so that they can be reapplied in case of a system crash. By augmenting the
 Command interface with load and store operations, you can keep a persistent log of changes.
-Recovering from a crash involves reloading logged commands from disk and re-executing them with
+Recovering from a crash involves reloading logged commands from the disk and re-executing them with
 the execute operation.
 * Structure a system around high-level operations build on primitive operations. Such a structure is
-common in information systems that support transactions. A transaction encapsulates a set of changes
-to data. The Command pattern offers a way to model transactions. Commands have a common interface,
+common in information systems that support transactions. A transaction encapsulates a set of data
+changes. The Command pattern offers a way to model transactions. Commands have a common interface,
 letting you invoke all transactions the same way. The pattern also makes it easy to extend the
 system with new transactions.
 
@@ -227,7 +227,7 @@ system with new transactions.
 * Implement callback functionality
 * Implement the undo functionality
 
-## Real world examples
+## Real-world examples
 
 * [java.lang.Runnable](http://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html)
 * [org.junit.runners.model.Statement](https://github.com/junit-team/junit4/blob/master/src/main/java/org/junit/runners/model/Statement.java)
diff --git a/command/src/main/java/com/iluwatar/command/App.java b/command/src/main/java/com/iluwatar/command/App.java
@@ -26,7 +26,7 @@
 /**
  * The Command pattern is a behavioral design pattern in which an object is used to encapsulate all
  * information needed to perform an action or trigger an event at a later time. This information
- * includes the method name, the object that owns the method and values for the method parameters.
+ * includes the method name, the object that owns the method, and values for the method parameters.
  *
  * <p>Four terms always associated with the command pattern are command, receiver, invoker and
  * client. A command object (spell) knows about the receiver (target) and invokes a method of the

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,7 @@`
`26`	`26`	`/**`
`27`	`27`	`* The Command pattern is a behavioral design pattern in which an object is used to encapsulate all`
`28`	`28`	`* information needed to perform an action or trigger an event at a later time. This information`
`29`		`- * includes the method name, the object that owns the method and values for the method parameters.`
	`29`	`+ * includes the method name, the object that owns the method, and values for the method parameters.`
`30`	`30`	`*`
`31`	`31`	`* <p>Four terms always associated with the command pattern are command, receiver, invoker and`
`32`	`32`	`* client. A command object (spell) knows about the receiver (target) and invokes a method of the`