I wrote the book "New j2s' job training course", which is officially published!

Introduction

This book systematically introduces all aspects of the technology, including the installation of the development environment, the related technologies and the use of development tools. Different from general technical books, this book is based on actual applications when introducing various j2's technologies, describes in detail the usage, practice, and problems encountered during actual use of these technologies and solutions to help you quickly enter the actual development. This book includes the entire process of the development of the agent program. It not only introduces the use of the agent technology, but also introduces the release of the agent program. This book includes j2wtk2.2 usage, MIDlet lifecycle, advanced user interface and low-level user interface programming, record storage, network programming, vendor development environment, the method for the release of the Java program and how to use JBuilder and eclipse for the development of the Java program.

Directory

Preface Chapter 1 Introduction 1.1 History and Status Quo 1 1.2 handheld device type 2 1.3 introduction to the operating system of handheld devices 3 1.4 introduction to embedded development 3 1.5 Architecture 4 1.6 introduction to obfuscators 6 1.7 j2's development process 6 1.8 advantages and disadvantages 7 1.9 working types of j2's 8 1.10 introduction to existing j2s games 8 Exercise 9 Chapter 2 j2's development environment 10 2.1 types of j2's development environment 10 2.2 j2's development tools 11 2.3 j2wtk 11 Exercise 18 Chapter 19 MIDlet lifecycle 19 3.1 Introduction to The MIDlet class 19 3.2 MIDlet lifecycle 20 3.3 First MIDlet 21 3.4 use j2wtk2.2 to compile and run 22 3.5 Other MIDlet Methods 25 3.6 MIDlet lifecycle test program 25 Exercise 27 Chapter 2 advanced user interface and event handling 28 4.1 User Interface classification 28 4.2 Display and displayable 29 4.3 advanced user interface 32 4.4 control Introduction 40 4.5 event handling 53 Exercise 58 Chapter 5 low-level user interface and event handling 59 5.1 overview of low-level user interfaces 59 5.2 use of the canvas class 59 5.3 use of the graphics class 63 5.4 event handling 71 5.5 Double Buffer technology 75 5.6 use of the font class 77 5.7 color use 80 Exercise 83 Chapter 4 record storage management system 84 6.1 Introduction to the record storage management system 84 6.2 use of the record storage management system 85 6.3 Chinese Problems and Solutions 95 6.4 application instance: implement the password remembering function 96 during login 6.5 use of recordlistener 103 Exercise 105 Chapter 5 Introduction to common classes 7th 7.1 system class 106 7.2 out-of-class 109 7.3 random class 111 7.4 time processing class 112 7.5 vector and hashtable 114 Exercise 119 Chapter 2 network programming 8th 8.1 network programming introduction 120 8.2 HTTP programming 122 8.3 socket programming 135 8.4 Other Connection Methods 137 Exercise 138 Chapter 2 Introduction to midp2.0 9th 9.1 Introduction to midp2.0 139 9.2 differences between midp2.0 and midp1.0 140 9.3 midp2.0 game API introduction 141 Exercise 145 Chapter 2 use the vendor development environment 10th 10.1 comparison between vendor development environment and j2wtk 146 10.2 Nokia SDK 147 10.3 Siemens SDK 162 10.4 Motorola SDK 163 10.5 sonyerisson SDK 163 10.6 unija SDK 164 10.7 samsung_wireless_toolkit 164 Exercise 164 Chapter 2 release of the j2's program 11th 11.1 OTA introduction 165 11.2 data line transmission 170 11.3 Infrared Transmission 173 11.4 Bluetooth transmission 173 11.5 others 173 Exercise 173 Chapter 2 multimedia programming and short message programming 12th 12.1 Optional package introduction 174 12.2 multimedia programming-175 of MMA usage 12.3 Short Message programming 185 Exercise 192 Chapter 4 using JBuilder for j2_development 13th 13.1 JBuilder introduction 193 13.2 use JBuilder to create a j2_project 194 13.2 Add the vendor development environment in JBuilder 200 13.3 use JBuilder to package the j2_program 203 Exercise 210 Chapter 2 using eclipse for j2_development 14th 14.1 eclipse introduction 211 14.2 create an eclipse j2's Development Environment 212 14.3 integrate the J2EE development tool with eclipse 219 14.4 use eclipse to create a j2_project 222 14.5 use eclipse to package the j2s program 224 Exercise 225 Chapter 2 actual development of the J2EE Project 15th 15.1 tornado memorandum project 226 15.2 a simple calculator 253 based on Nokia s60 Appendix A common website of j2's 259 Appendix B common attributes of JAD file 260