State.handleInput C# (CSharp) Method

    public virtual void handleInput(object sender, InputEventArgs e)
    {
    }

        void Update()
        {
            text.text    = currentState.printOptions();
            currentState = currentState.handleInput(code);
            code         = emptyCode;

            if (Input.GetKeyDown(KeyCode.Escape))
            {
                code = KeyCode.Escape;
            }
            if (Input.GetKeyDown(KeyCode.L))
            {
                code = KeyCode.L;
            }
            if (Input.GetKeyDown(KeyCode.E))
            {
                code = KeyCode.E;
            }
            if (Input.GetKeyDown(KeyCode.A))
            {
                code = KeyCode.A;
            }
            if (Input.GetKeyDown(KeyCode.B))
            {
                code = KeyCode.B;
            }
            if (Input.GetKeyDown(KeyCode.C))
            {
                code = KeyCode.C;
            }
        }