src/main/java/exo11/Cercle.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package exo11;
+
+/**
+ *
+ * @author stag
+ */
+public class Cercle extends Forme{
+    @Override
+    public double Surface() {
+       
+    }
+
+    @Override
+    public double Perimetre() {
+    }
+}

src/main/java/exo11/Dimensionnable.java

@@ -10,4 +10,8 @@ package exo11;
  */
 public interface Dimensionnable {
 
+    public abstract double Surface();
+
+    public abstract double Perimetre();
+
 }

src/main/java/exo11/Forme.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package exo11;
+
+/**
+ *
+ * @author stag
+ */
+public abstract class Forme implements Dimensionnable {
+    protected double[] Dimensions;
+    public abstract String nom();
+   
+    
+    
+}

src/main/java/exo11/Triangle.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package exo11;
+
+/**
+ *
+ * @author stag
+ */
+public class Triangle extends Forme {
+
+    @Override
+    public double Surface() {
+       
+    }
+
+    @Override
+    public double Perimetre() {
+    }
+    
+}

src/main/java/exo11/TriangleRectangle.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package exo11;
+
+/**
+ *
+ * @author stag
+ */
+public class TriangleRectangle extends Forme{
+    @Override
+    public double Surface() {
+       
+    }
+
+    @Override
+    public double Perimetre() {
+    }
+}