#107 Improve JavaDoc for Observer example

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

@@ -12,6 +12,10 @@ import com.iluwatar.observer.generic.GWeather;
  */
 public class App {
 
+	/**
+	 * Program entry point
+	 * @param args command line args
+	 */
 	public static void main(String[] args) {
 
 		Weather weather = new Weather();
@@ -33,6 +37,5 @@ public class App {
 		gWeather.timePasses();
 		gWeather.timePasses();
 		gWeather.timePasses();
-
 	}
 }

observer/src/main/java/com/iluwatar/observer/Hobbits.java

@@ -1,5 +1,10 @@
 package com.iluwatar.observer;
 
+/**
+ * 
+ * Hobbits
+ *
+ */
 public class Hobbits implements WeatherObserver {
 
 	@Override

observer/src/main/java/com/iluwatar/observer/Orcs.java

@@ -1,5 +1,10 @@
 package com.iluwatar.observer;
 
+/**
+ * 
+ * Orcs
+ *
+ */
 public class Orcs implements WeatherObserver {
 
 	@Override

observer/src/main/java/com/iluwatar/observer/Weather.java

@@ -5,7 +5,7 @@ import java.util.List;
 
 /**
  * 
- * Weather can be observed by implementing WeatherObserver interface and
+ * Weather can be observed by implementing {@link WeatherObserver} interface and
  * registering as listener.
  * 
  */

observer/src/main/java/com/iluwatar/observer/WeatherType.java

@@ -1,5 +1,10 @@
 package com.iluwatar.observer;
 
+/**
+ * 
+ * WeatherType enumeration
+ * 
+ */
 public enum WeatherType {
 
 	SUNNY, RAINY, WINDY, COLD;

observer/src/main/java/com/iluwatar/observer/generic/GHobbits.java

@@ -2,6 +2,11 @@ package com.iluwatar.observer.generic;
 
 import com.iluwatar.observer.WeatherType;
 
+/**
+ * 
+ * GHobbits
+ *
+ */
 public class GHobbits implements Race {
     @Override
     public void update(GWeather weather, WeatherType weatherType) {

observer/src/main/java/com/iluwatar/observer/generic/GOrcs.java

@@ -2,7 +2,13 @@ package com.iluwatar.observer.generic;
 
 import com.iluwatar.observer.WeatherType;
 
+/**
+ * 
+ * GOrcs
+ *
+ */
 public class GOrcs implements Race {
+	
     @Override
     public void update(GWeather weather, WeatherType weatherType) {
         switch (weatherType) {

observer/src/main/java/com/iluwatar/observer/generic/GWeather.java

@@ -2,6 +2,11 @@ package com.iluwatar.observer.generic;
 
 import com.iluwatar.observer.WeatherType;
 
+/**
+ * 
+ * GWeather
+ *
+ */
 public class GWeather extends Observable<GWeather, Race, WeatherType> {
 
     private WeatherType currentWeather;

observer/src/main/java/com/iluwatar/observer/generic/Observer.java

@@ -1,5 +1,13 @@
 package com.iluwatar.observer.generic;
 
+/**
+ * 
+ * Observer
+ *
+ * @param <S>
+ * @param <O>
+ * @param <A>
+ */
 public interface Observer<S extends Observable<S, O, A>, O extends Observer<S, O, A>, A> {
 
     void update(S subject, A argument);

observer/src/main/java/com/iluwatar/observer/generic/Race.java

@@ -2,5 +2,10 @@ package com.iluwatar.observer.generic;
 
 import com.iluwatar.observer.WeatherType;
 
+/**
+ * 
+ * Race
+ *
+ */
 public interface Race extends Observer<GWeather, Race, WeatherType> {
 }

observer/src/test/java/com/iluwatar/observer/AppTest.java

@@ -4,6 +4,11 @@ import org.junit.Test;
 
 import com.iluwatar.observer.App;
 
+/**
+ * 
+ * Application test
+ *
+ */
 public class AppTest {
 
 	@Test