add java examples

java/crtp/OctoGrid.java

@@ -0,0 +1,25 @@
+package patterns.crtp;
+
+import java.util.Arrays;
+import java.util.List;
+
+import patterns.Point;
+/**
+ * 
+ * @author pouyllau
+ *
+ */
+public class OctoGrid extends Neighborhood<OctoGrid> {
+
+	public OctoGrid(double step, Point pMin, Point pMax) {
+		super(step, pMin, pMax);
+		this.t = this;
+	}
+
+	public List<Point> get(Point p) {
+		return Point.neighbors_grid(p, step, pMin, pMax,
+				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)));
+	}
+
+}