Private method access instance variable in Julia

In Julia, instance variables can be accessed in private methods using the self keyword. The self keyword refers to the object or instance that the method is being called on.

Here's an example:

struct MyClass
    private_field::Int
    
    function MyClass(private_field::Int)
        new(private_field)
    end
    
    private function my_private_method()
        println("Accessing private field: ", self.private_field)
    end
end
obj = MyClass(42)

obj.my_private_method() # prints "Accessing private field: 42"

In the example above, the private_field variable is an instance variable that is declared as private. The constructor takes an argument that initializes this variable.

The method my_private_method is marked as private and can only be called by methods or functions defined within the same module. Inside the method, the self keyword can be used to access the private instance variable private_field.

We create an object of MyClass and call the private method my_private_method on it. The output will be "Accessing private field: 42", confirming that the private method is able to access the private instance variable.