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Extract Month and Day from Date in R

Is there a way to extract month and day from Date as shown below > asd <- data.frame(a = c('2020-02-15', '2020-03-16')) > asd a 1 2020-02-15

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I have been turning the popular guessing game into an app using Java in Android Studio. I want it so that a user can make up to five trials before the answer is

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