Initial data commit

Task/Variables/Ada/variables.ada

@@ -0,0 +1,19 @@
+Name: declare   -- a local declaration block has an optional name
+   A : constant Integer := 42;  -- Create a constant
+   X : String := "Hello"; -- Create and initialize a local variable
+   Y : Integer;           -- Create an uninitialized variable
+   Z : Integer renames Y: -- Rename Y (creates a view)
+   function F (X: Integer) return Integer is
+     -- Inside, all declarations outside are visible when not hidden: X, Y, Z are global with respect to F.
+     X: Integer := Z;  -- hides the outer X which however can be referred to by Name.X
+   begin
+     ...
+   end F;  -- locally declared variables stop to exist here
+begin
+   Y := 1; -- Assign variable
+   declare
+     X: Float := -42.0E-10;  -- hides the outer X (can be referred to Name.X like in F)
+   begin
+     ...
+   end;
+end Name; -- End of the scope