Question: Write a recursive method called countBinary that accepts an integer n as a parameter and that prints all binary numbers that have exactly n digits

Write a recursive method called countBinary that accepts an integer n as a parameter and that prints all binary numbers that have exactly n digits in ascending order, each on its own line. All digits should be shown for all numbers, including leading zeros if necessary. Assume that n is nonnegative. If n is 0, a blank line should be produced.

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