Counting words is a very common functionality of editorial software. Words are separated by spaces. For example, the string "Mary had a little lamb" should have a word count of $5.$ also provides the word counting function. Try to enter the string and see if the word count is $5.$ Then insert some extra spaces between some of the words and recount, the word count would still show $5$ because the extra spaces are simply ignored.In this program problem, you will develop three methods with the following signatures. The functionality, parameters, and return types are described in the Javadoc comments.Finally design the main method to get a string from the user, invoke countWords method, and display the word count.Your methods should be designed according to the descriptions given above. You should test your program with a minimum of three strings, one of which should have extra spaces between words.