From b39780a2f5b3aa78f2d3694040afcf64453154a2 Mon Sep 17 00:00:00 2001
From: Jozef Jankaj <jozefj44@gmail.com>
Date: Sun, 2 May 2021 19:21:56 +0200
Subject: [PATCH 1/2] initial graph

---
 src/graph/Edge.java  | 6 ++++++
 src/graph/Graph.java | 4 ++++
 src/graph/Node.java  | 5 +++++
 3 files changed, 15 insertions(+)
 create mode 100644 src/graph/Edge.java
 create mode 100644 src/graph/Graph.java
 create mode 100644 src/graph/Node.java

diff --git a/src/graph/Edge.java b/src/graph/Edge.java
new file mode 100644
index 0000000..fb5af98
--- /dev/null
+++ b/src/graph/Edge.java
@@ -0,0 +1,6 @@
+package graph;
+
+public class Edge<T> {
+    Node<T> node1;
+    Node<T> node2;
+}
diff --git a/src/graph/Graph.java b/src/graph/Graph.java
new file mode 100644
index 0000000..dc8fd7a
--- /dev/null
+++ b/src/graph/Graph.java
@@ -0,0 +1,4 @@
+package graph;
+
+public class Graph {
+}
diff --git a/src/graph/Node.java b/src/graph/Node.java
new file mode 100644
index 0000000..52ddb09
--- /dev/null
+++ b/src/graph/Node.java
@@ -0,0 +1,5 @@
+package graph;
+
+public class Node<T> {
+    T item;
+}

From e92c291e57d8a3677dba02768f9c7351d601ffe3 Mon Sep 17 00:00:00 2001
From: Jozef Jankaj <jozefj44@gmail.com>
Date: Sun, 2 May 2021 19:50:28 +0200
Subject: [PATCH 2/2] backbone should be done

---
 src/graph/Edge.java  |  6 ------
 src/graph/Graph.java |  9 ++++++++-
 src/graph/Node.java  | 19 +++++++++++++++++--
 3 files changed, 25 insertions(+), 9 deletions(-)
 delete mode 100644 src/graph/Edge.java

diff --git a/src/graph/Edge.java b/src/graph/Edge.java
deleted file mode 100644
index fb5af98..0000000
--- a/src/graph/Edge.java
+++ /dev/null
@@ -1,6 +0,0 @@
-package graph;
-
-public class Edge<T> {
-    Node<T> node1;
-    Node<T> node2;
-}
diff --git a/src/graph/Graph.java b/src/graph/Graph.java
index dc8fd7a..3948543 100644
--- a/src/graph/Graph.java
+++ b/src/graph/Graph.java
@@ -1,4 +1,11 @@
 package graph;
 
-public class Graph {
+import java.util.List;
+
+public abstract class Graph {
+    protected List<Node> nodes;
+
+    public List<Node> getAllNodes() {
+        return nodes;
+    }
 }
diff --git a/src/graph/Node.java b/src/graph/Node.java
index 52ddb09..5f4d687 100644
--- a/src/graph/Node.java
+++ b/src/graph/Node.java
@@ -1,5 +1,20 @@
 package graph;
 
-public class Node<T> {
-    T item;
+import java.util.List;
+
+public abstract class Node {
+    private final String item;
+    private List<Node> children;
+
+    public Node(String item) {
+        this.item = item;
+    }
+
+    public String getItem() {
+        return item;
+    }
+
+    public List<Node> getChildren() {
+        return children;
+    }
 }