Merge pull request #281 from ankurkaushal/master

Reformat according to google style guide

null-object/src/main/java/com/iluwatar/nullobject/App.java

@@ -2,35 +2,27 @@ package com.iluwatar.nullobject;
 
 /**
  * 
- * Null Object pattern replaces null values with neutral objects.
- * Many times this simplifies algorithms since no extra null checks
- * are needed.
+ * Null Object pattern replaces null values with neutral objects. Many times this simplifies
+ * algorithms since no extra null checks are needed.
  * <p>
- * In this example we build a binary tree where the nodes are either
- * normal or Null Objects. No null values are used in the tree making
- * the traversal easy.
+ * In this example we build a binary tree where the nodes are either normal or Null Objects. No null
+ * values are used in the tree making the traversal easy.
  *
  */
-public class App 
-{
-	/**
-	 * Program entry point
-	 * @param args command line args
-	 */
-    public static void main( String[] args ) {
-    	
-    	Node root = new NodeImpl("1",
-    			new NodeImpl("11",
-    					new NodeImpl("111",
-    							NullNode.getInstance(),
-    							NullNode.getInstance()),
-    					NullNode.getInstance()), 
-    			new NodeImpl("12",
-    					NullNode.getInstance(),
-    					new NodeImpl("122",
-    							NullNode.getInstance(),
-    							NullNode.getInstance())));
+public class App {
+  /**
+   * Program entry point
+   * 
+   * @param args command line args
+   */
+  public static void main(String[] args) {
 
-    	root.walk();
-    }
+    Node root =
+        new NodeImpl("1", new NodeImpl("11", new NodeImpl("111", NullNode.getInstance(),
+            NullNode.getInstance()), NullNode.getInstance()), new NodeImpl("12",
+            NullNode.getInstance(), new NodeImpl("122", NullNode.getInstance(),
+                NullNode.getInstance())));
+
+    root.walk();
+  }
 }

null-object/src/main/java/com/iluwatar/nullobject/Node.java

@@ -7,9 +7,13 @@ package com.iluwatar.nullobject;
  */
 public interface Node {
 
-	String getName();
-	int getTreeSize();
-	Node getLeft();
-	Node getRight();
-	void walk();
+  String getName();
+
+  int getTreeSize();
+
+  Node getLeft();
+
+  Node getRight();
+
+  void walk();
 }

null-object/src/main/java/com/iluwatar/nullobject/NodeImpl.java

@@ -7,44 +7,44 @@ package com.iluwatar.nullobject;
  */
 public class NodeImpl implements Node {
 
-	private final String name;
-	private final Node left;
-	private final Node right;
-	
-	public NodeImpl(String name, Node left, Node right) {
-		this.name = name;
-		this.left = left;
-		this.right = right;
-	}
-	
-	@Override
-	public int getTreeSize() {
-		return 1 + left.getTreeSize() + right.getTreeSize();
-	}
+  private final String name;
+  private final Node left;
+  private final Node right;
 
-	@Override
-	public Node getLeft() {
-		return left;
-	}
+  public NodeImpl(String name, Node left, Node right) {
+    this.name = name;
+    this.left = left;
+    this.right = right;
+  }
 
-	@Override
-	public Node getRight() {
-		return right;
-	}
+  @Override
+  public int getTreeSize() {
+    return 1 + left.getTreeSize() + right.getTreeSize();
+  }
 
-	@Override
-	public String getName() {
-		return name;
-	}
+  @Override
+  public Node getLeft() {
+    return left;
+  }
 
-	@Override
-	public void walk() {
-		System.out.println(name);
-		if (left.getTreeSize() > 0) {
-			left.walk();
-		}
-		if (right.getTreeSize() > 0) {
-			right.walk();
-		}
-	}
+  @Override
+  public Node getRight() {
+    return right;
+  }
+
+  @Override
+  public String getName() {
+    return name;
+  }
+
+  @Override
+  public void walk() {
+    System.out.println(name);
+    if (left.getTreeSize() > 0) {
+      left.walk();
+    }
+    if (right.getTreeSize() > 0) {
+      right.walk();
+    }
+  }
 }

null-object/src/main/java/com/iluwatar/nullobject/NullNode.java

@@ -9,36 +9,34 @@ package com.iluwatar.nullobject;
  */
 public class NullNode implements Node {
 
-	private static NullNode instance = new NullNode();
-	
-	private NullNode() {
-	}
-	
-	public static NullNode getInstance() {
-		return instance;
-	}
-	
-	@Override
-	public int getTreeSize() {
-		return 0;
-	}
+  private static NullNode instance = new NullNode();
 
-	@Override
-	public Node getLeft() {
-		return null;
-	}
+  private NullNode() {}
 
-	@Override
-	public Node getRight() {
-		return null;
-	}
+  public static NullNode getInstance() {
+    return instance;
+  }
 
-	@Override
-	public String getName() {
-		return null;
-	}
+  @Override
+  public int getTreeSize() {
+    return 0;
+  }
 
-	@Override
-	public void walk() {
-	}
+  @Override
+  public Node getLeft() {
+    return null;
+  }
+
+  @Override
+  public Node getRight() {
+    return null;
+  }
+
+  @Override
+  public String getName() {
+    return null;
+  }
+
+  @Override
+  public void walk() {}
 }

null-object/src/test/java/com/iluwatar/nullobject/AppTest.java

@@ -11,9 +11,9 @@ import com.iluwatar.nullobject.App;
  */
 public class AppTest {
 
-	@Test
-	public void test() {
-		String[] args = {};
-		App.main(args);
-	}
+  @Test
+  public void test() {
+    String[] args = {};
+    App.main(args);
+  }
 }