Add the history feature to the calculator

[sugata98]

The menu button has been provided. Code the History button which shows the history of operations performed in a new intent.

[yog-singh]

I'm taking up to solve this. Should the history contain a limited number of previous calculations?

[sugata98]

For now, the history should get saved with the starting of the app and gets deleted with closing of app.

[Zyro9922]

For now, the history should get saved with the starting of the app and gets deleted with closing of app.

You can do a slight change to add editText2 content and it's done