Introduction - If you have any usage issues, please Google them yourself
Open the IOStreamDemo.java file in the eleventh chapter, a line to read, so that each line to form a String object. Then use the java.util.Comparator interface to redefine the String object
Comparison method: the lower case letters in each of the String to the capital after the comparison. Using the comparison
Method to sort these String, in order to deposit a LinkedList large to small. In the end, the String of the LinkedList is stored in the opposite order of the inverse.txt.