Question: Write a method public static int countWords(String str) that returns a count of all words in the string str. Words are separated by spaces. For

Write a method

public static int countWords(String str)
that returns a count of all words in the string str. Words are separated by spaces. For example, countWords(" Mary had a little lamb") should return 5. Your method should work correctly if there are multiple spaces between words. Use helper methods to find the position of the next space following a given position, and the position of the next non-space character following a given position.

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