In this section, we're going to take a look at Java's Map data structure. I wanted to start with a bunch of already formatted information, so I have created a little program on my own. You will find the following program in the companion files for the book. Take a look through it and make sure you understand how it works:
package maps; import java.util.*; public class Maps { public static void main(String[] args) { String[] allNames = //<editor-fold desc="raw names data"> {"Jane", "Addams", "Muhammad", "Ali", "Stephen", "Ambrose", "Louis", "Armstrong", "Joan", "Baez", "Josephine", "Baker", "Eleanor", "Roosevelt", "Frank", "Sinatra" }; //</editor-fold> String[] firstNames = new String[allNames.length/2]; String[] lastNames = new String[allNames.length/2]; ...
