3. Create a new Java Class that uses the same name as the class containing the main method in this program 5. Save and run the program import java.util.HashMap; class NestedDictionaries { // The main ...

Chapter 9. General Programming（通用程序设计） Item 58: Prefer for-each loops to traditional for loops（for-each 循环优于传统的 for 循环） As discussed in Item 45, some tasks are best accomplished with streams, others ...