attribute visibility

Author: dsmf

src/main/java/example/TreeNode.java

@@ -1,40 +1,40 @@
-package example;
-import java.util.LinkedList;
-import java.util.List;
-
-public class TreeNode<T> {
-
-    T data;
-    TreeNode<T> parent;
-    List<TreeNode<T>> children;
-    
-    public List<TreeNode<T>> getChildren() {
-        return children;
-    }
-    
-    public TreeNode<T> getParent() {
-        return parent;
-    }
-    
-    public T getData() {
-        return data;
-    }
-
-    public TreeNode(T data) {
-        this.data = data;
-        this.children = new LinkedList<TreeNode<T>>();
-    }
-    
-    public TreeNode(TreeNode<T> n) {
-        this.data = n.getData();
-        this.children = n.getChildren();
-    }
-
-    public TreeNode<T> addChild(T child) {
-        TreeNode<T> childNode = new TreeNode<T>(child);
-        childNode.parent = this;
-        this.children.add(childNode);
-        return childNode;
-    }
-
-}
+package example;
+import java.util.LinkedList;
+import java.util.List;
+
+public class TreeNode<T> {
+
+    private T data;
+    private TreeNode<T> parent;
+    private List<TreeNode<T>> children;
+    
+    public List<TreeNode<T>> getChildren() {
+        return children;
+    }
+    
+    public TreeNode<T> getParent() {
+        return parent;
+    }
+    
+    public T getData() {
+        return data;
+    }
+
+    public TreeNode(T data) {
+        this.data = data;
+        this.children = new LinkedList<TreeNode<T>>();
+    }
+    
+    public TreeNode(TreeNode<T> n) {
+        this.data = n.getData();
+        this.children = n.getChildren();
+    }
+
+    public TreeNode<T> addChild(T child) {
+        TreeNode<T> childNode = new TreeNode<T>(child);
+        childNode.parent = this;
+        this.children.add(childNode);
+        return childNode;
+    }
+
+}