Aufgabenblatt 3

src/BodyForceTreeMap.java

@@ -0,0 +1,40 @@
+// A map that associates a Body with a Vector3 (typically this is the force exerted on the body).
+// The number of key-value pairs is not limited.
+public class BodyForceTreeMap {
+
+    //TODO: declare variables.
+
+    // Adds a new key-value association to this map. If the key already exists in this map,
+    // the value is replaced and the old value is returned. Otherwise 'null' is returned.
+    // Precondition: key != null.
+    public Vector3 put(Body key, Vector3 value) {
+
+        //TODO: implement method.
+        return null;
+    }
+
+    // Returns the value associated with the specified key, i.e. the method returns the force vector
+    // associated with the specified key. Returns 'null' if the key is not contained in this map.
+    // Precondition: key != null.
+    public Vector3 get(Body key) {
+
+        //TODO: implement method.
+        return null;
+    }
+
+    // Returns 'true' if this map contains a mapping for the specified key.
+    public boolean containsKey(Body key) {
+
+        //TODO: implement method.
+        return false;
+    }
+
+    // Returns a readable representation of this map, in which key-value pairs are ordered
+    // descending according to the mass of the bodies.
+    public String toString() {
+
+        //TODO: implement method.
+        return null;
+
+    }
+}