#107 Improve JavaDoc for Lazy Loading example

lazy-loading/src/main/java/com/iluwatar/lazy/loading/App.java

@@ -3,16 +3,20 @@ package com.iluwatar.lazy.loading;
 /**
  * 
  * Lazy loading idiom defers object creation until needed.
- * 
+ * <p>
  * This example shows different implementations of the pattern
  * with increasing sophistication.
- * 
+ * <p>
  * Additional information and lazy loading flavours are described in
  * http://martinfowler.com/eaaCatalog/lazyLoad.html
  *
  */
 public class App 
 {
+	/**
+	 * Program entry point
+	 * @param args command line args
+	 */
     public static void main( String[] args ) {
     	
     	// Simple lazy loader - not thread safe

lazy-loading/src/main/java/com/iluwatar/lazy/loading/Java8Holder.java

@@ -4,8 +4,8 @@ import java.util.function.Supplier;
 
 /**
  * 
- * This lazy loader is thread safe and more efficient than HolderThreadSafe.
+ * This lazy loader is thread safe and more efficient than {@link HolderThreadSafe}.
- * It utilizes Java 8 functional interface Supplier<T> as Heavy factory.
+ * It utilizes Java 8 functional interface {@link Supplier<T>} as {@link Heavy} factory.
  *
  */
 public class Java8Holder {

lazy-loading/src/test/java/com/iluwatar/lazy/loading/AppTest.java

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