Question: I need both 3 and 4 please Exercise 3. Write a program that reads a file, removes any blank lines, and writes the non-blank lines

I need both 3 and 4 please Exercise 3. Write a

I need both 3 and 4 please

Exercise 3. Write a program that reads a file, removes any blank lines, and writes the non-blank lines back to the same file. You do not have to make this program interactive at all (e.g. they don't have to be able to input the file name with the Scanner). Exercise 4. Write a program that asks the user for a file name and prints the number of characters, words, and lines in that file. Assume the file name they input actually exists as a file

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