Reformat business-delegate, callback, chain, command, composite, dao, decorator & dependency-injection patterns.

callback/src/main/java/com/iluwatar/callback/App.java

@@ -2,20 +2,21 @@ package com.iluwatar.callback;
 
 /**
  * 
- * Callback pattern is more native for functional languages where functions are treated as first-class citizens.
- * Prior to Java 8 callbacks can be simulated using simple (alike command) interfaces.
+ * Callback pattern is more native for functional languages where functions are treated as
+ * first-class citizens. Prior to Java 8 callbacks can be simulated using simple (alike command)
+ * interfaces.
  * 
  */
 public class App {
 
-	public static void main(String[] args) {
-		Task task = new SimpleTask();
-		Callback callback = new Callback() {
-			@Override
-			public void call() {
-				System.out.println("I'm done now.");
-			}
-		};
-		task.executeWith(callback);
-	}
+  public static void main(String[] args) {
+    Task task = new SimpleTask();
+    Callback callback = new Callback() {
+      @Override
+      public void call() {
+        System.out.println("I'm done now.");
+      }
+    };
+    task.executeWith(callback);
+  }
 }

callback/src/main/java/com/iluwatar/callback/Callback.java

@@ -7,5 +7,5 @@ package com.iluwatar.callback;
  */
 public interface Callback {
 
-	public void call();
+  public void call();
 }

callback/src/main/java/com/iluwatar/callback/SimpleTask.java

@@ -7,9 +7,8 @@ package com.iluwatar.callback;
  */
 public class SimpleTask extends Task {
 
-	@Override
-	public void execute() {
-		System.out.println("Perform some important activity and after call the callback method.");
-	}
-
+  @Override
+  public void execute() {
+    System.out.println("Perform some important activity and after call the callback method.");
+  }
 }

callback/src/main/java/com/iluwatar/callback/Task.java

@@ -7,12 +7,12 @@ package com.iluwatar.callback;
  */
 public abstract class Task {
 
-	public final void executeWith(Callback callback) {
-		execute();
-		if (callback != null) {
-			callback.call();
-		}
-	}
+  public final void executeWith(Callback callback) {
+    execute();
+    if (callback != null) {
+      callback.call();
+    }
+  }
 
-	public abstract void execute();
+  public abstract void execute();
 }