add java examples

java/strategy/OctoGrid.java

@@ -0,0 +1,24 @@
+package patterns.strategy;
+
+import java.util.Arrays;
+import java.util.List;
+
+import patterns.Point;
+/**
+ * 
+ * @author pouyllau
+ *
+ */
+public class OctoGrid extends Neighborhood {
+
+	public OctoGrid(double step, Point pMin, Point pMax) {
+		super(step, pMin, pMax);
+		this.directions = Arrays.asList(new Point(1, 0), new Point(1, -1), new Point(0, -1), new Point(-1, -1),
+				new Point(-1, 0), new Point(-1, 1), new Point(0, 1), new Point(1, 1));
+	}
+
+	public List<Point> get(Point p) {
+		
+		return Point.neighbors_grid(p, step,pMin, pMax, directions);
+	}
+}