[android help] android shared preference one key with multiple values

My query is straight forward, couldn't find answer across google:

For Example:

Repository 1 -> username1 -> password1

Repository 2 -> username2 -> password2

Repository 3 -> username3 -> password3

As mentioned above, I have a dialog box with three repositories. When user selects a repository automatically another dialog box pops up to enter username and password.

So, what i am trying to achieve is to save repository name, username and password in a shared preference with a single key.

I know how to create a shared pref object with a single key and value. What i am looking for is a shared pref obj with a single key and 3 values.

Is it really possible? If yes, you can show me some direction.

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