Added a Graph datastructure and refactored the Line/Vertex classes

src/Graph/Edge.java

@@ -0,0 +1,59 @@
+package Graph;
+
+public class Edge {
+    Vertex vStart = null;
+    Vertex vEnd = null;
+    float weight = 0;
+
+    /**
+     * @param vStart the vertex the edge starts at
+     * @param vEnd the vertex the edge ends at
+     * @param weight the weight of the edge
+     */
+    Edge(Vertex vStart, Vertex vEnd, float weight){
+        this.vStart = vStart;
+        this.vEnd = vEnd;
+        this.weight = weight;
+    }
+
+    /**
+     * @param vStart the vertex the edge starts at
+     * @param vEnd the vertex the edge ends at
+     */
+    Edge(Vertex vStart, Vertex vEnd){
+        this.vStart = vStart;
+        this.vEnd = vEnd;
+    }
+
+    Edge(){}
+
+    /**
+     * @return the weight of the edge
+     */
+    public float getWeight(){
+        return weight;
+    }
+
+    /**
+     * @param newWeight set the edge's weight to something new
+     */
+    public void setWeight(float newWeight){
+        this.weight = newWeight;
+    }
+
+    /**
+     * @return the vertex at the end of the edge
+     */
+    public Vertex getEndVertex(){
+        return vEnd;
+    }
+
+    /**
+     * @return the vertex at the start of the edge
+     */
+    public Vertex getStartVertex(){
+        return vStart;
+    }
+
+}
+