diff --git a/Filter.rb b/Filter.rb
new file mode 100644
index 0000000..1164bbd
--- /dev/null
+++ b/Filter.rb
@@ -0,0 +1,11 @@
+class Filter
+  attr_accessor :value
+  attr_accessor :comparator
+
+  def initialize(value, comp)
+    @value = value
+    @comparator = comp
+  end
+
+end
+
diff --git a/functional_functions.rb b/functional_functions.rb
new file mode 100644
index 0000000..9994488
--- /dev/null
+++ b/functional_functions.rb
@@ -0,0 +1,8 @@
+def func_find_all(container_obj, attribute, filter_by)
+  filters = filter_by.map do |x|
+    "s.get#{attribute}() #{x.comparator} #{x.value}"
+  end
+  # TODO: Consider also having an "or" here
+  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).collect(Collectors.toList());"
+
+end
diff --git a/lol.rb b/lol.rb
index 0320305..f6be68b 100644
--- a/lol.rb
+++ b/lol.rb
@@ -1,6 +1,8 @@
 require_relative 'find_algos'
 require_relative 'sorting_algos'
 require_relative 'Type'
+require_relative 'functional_functions'
+require_relative 'Filter'
 
 
 
@@ -123,7 +125,7 @@ def construct_driver(class_name, parameters, methods, container_class, container
         lol.add#{class_name}(tmp5);
         System.out.println(\"\");
         System.out.println(\"Some checkpoint\");
-        #{maggie.join "\n System.out.println(\"Some Checkpoint\"); \n"}
+        #{maggie.join "\n\n System.out.println(\"Some Checkpoint\"); \n\n"}
 
       }
 
@@ -227,6 +229,19 @@ container_methods = [
             :name => "Name"
                     }],
         :method_type => find_best_with_extra_parameter("ferries", "Length", " > ", "#{name}", "Name", ".equals", "Name", "int")
+    },
+    {
+        :return_type => "List<#{name}>",
+        :name => "findFerries",
+        :params => [{
+            :type => "int",
+            :name => "min",
+                    },
+        {
+            :type => "int",
+            :name => "max"
+                    }],
+        :method_type => func_find_all("ferries", "Width", [Filter.new("min", ">="), Filter.new("max", "<=")])
     }
 ]
 
@@ -243,7 +258,8 @@ another_another_file.close
 another_file = File.open("TestDriver.java", "w")
 another_file.puts(construct_driver name, params, [{:name => "smallFerries", :parameters => [{:type => "int"}], :print => true},
                                                           {:name => "longFerry", :parameters => [{:type => "String"}], :print => true},
-                                                          {:name => "printHarbour", :parameters => [], :print => false}], "Harbour", [{:type => "String"}])
+                                                          {:name => "printHarbour", :parameters => [], :print => false},
+                                                          {:name => "findFerries", :parameters => [{:type => "int"}, {:type => "int"}], :print => true }], "Harbour", [{:type => "String"}])
 another_file.close