This book code procedure according to the chapter arrangement, the 1st chapter of example under "1" the table of contents, the 2nd chapter of example under "2" the table of contents, to the order analogizes. Under corresponding table of contents including Java source code document and by it correspondence translation class document. The reader may use software and so on the text editor opens the Java source code document, examines this book the detailed code. 13th chapter the code defers to the project project laying aside. May directly use NetBeans to open the project document to carry on the code examination.