Question: Write a method printStars that takes an integer n as a parameter and returns a string of an upside- down triangle of asterisks as follows.

Write a method printStars that takes an integer n as a parameter and returns a string of an upside- down triangle of asterisks as follows. Assume n is always positive. For example, if n = 3, the method returns *** -** --*. If n = 4, the method returns **** -*** --** ---*.

need a java code.

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