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.

While inserting images, the picture command is usually used to insert photos from a digital camera, and the clip art command is usually used to a.edit the sizes and other characteristics of photos that have been inserted. b.take a screenshot of an image and copy it to the clipboard for pasting. c.search for drawings or other images from a library of prepared pictures. d.make illustrations using lines and shapes that are easy to manipulate.