What are the differences between bluetooth and wifi connection?

Write a method that accepts a string object as an argument and returns the number of words it contains. for instance, if the argument is "four score and seven years ago", the method should return the number 6. demonstrate the method in a program that asks the user to input a string and then passes that string into the method, printing out whatever the method returns.

Does read theory have answers keys ?

Some peer-to-peer networks have a server and some don't. true false