Write a program that reads the contents of a file named text. txt and determines the following: the number of uppercase letters in the file the number of lowercase letters in the file the number of digits in the file prompts and output labels. there are no prompts-- nothing is read from standard in, just from the file text. txt. each of the numbers calculated is displayed on a separate line on standard output, preceded by the following prompts (respectively): "uppercase characters: ", "lowercase characters: ", "digits: ".