1 files changed, 13 insertions, 0 deletions
diff --git a/sem5/oop/m4/shapes/src/Shape2d.java b/sem5/oop/m4/shapes/src/Shape2d.java
new file mode 100644
index 0000000..09767fa
--- /dev/null
+++ b/sem5/oop/m4/shapes/src/Shape2d.java
@@ -0,0 +1,13 @@
+
+public interface Shape2d {
+	/**
+	 * Calculates the area of the 2d shape.
+	 * @return Area in UNIT^2
+	 */
+	public double area();
+	/**
+	 * Returns the perimeter around the shape.
+	 * @return Perimeter in UNIT
+	 */
+	public double perimeter();
+}