final final final

src/MapsCollection.java

@@ -0,0 +1,38 @@
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class MapsCollection {
+    private final HashMap<String,MapWithSetGasolineTankerGeneric<DrawingObjectGasolineTanker,AbstractMap>> _mapStorages;
+    private final int _pictureWidth;
+    private final int _pictureHeight;
+
+    public MapsCollection(int pictureWidth,int pictureHeight){
+        _mapStorages=new HashMap<>();
+        _pictureWidth=pictureWidth;
+        _pictureHeight=pictureHeight;
+    }
+
+    public ArrayList<String> Keys(){
+        return new ArrayList<>(_mapStorages.keySet());
+    }
+
+    public void AddMap(String name, AbstractMap map){
+        if (_mapStorages.containsKey(name)){
+            return;
+        }
+        else{
+            _mapStorages.put(name,new MapWithSetGasolineTankerGeneric<>(_pictureWidth,_pictureHeight,map));
+        }
+    }
+
+    public void DelMap(String name){
+        _mapStorages.remove(name);
+    }
+
+    public MapWithSetGasolineTankerGeneric<DrawingObjectGasolineTanker,AbstractMap> get(String name){
+        if (_mapStorages.containsKey(name)){
+            return _mapStorages.get(name);
+        }
+        return null;
+    }
+}