now you get a file folder in that folder and now you can easily read xml files also. Step 4: It's not any step just copy contents of both folder(in this case both new folder)to the single one. Source:- Android: Getting source code from an APK file.
It was Lewis Nixon who invented the very first sonar-type listening device in 1906. He was seeking a way of detecting icebergs. But the sonar was not invented, its inventor was nobody, but developed through the years. Sonar had very humble beginnings, from crude instruments to advanced technology.
The history of radar will show that it began in 1904. German engineer Christian Hulsmeyer created an apparatus capable of detecting an objectâs presence some distance away. However, no single scientist invented the modern radar; scientists from several nations worked on it, especially during the 1930s and 40s.ulsmeyer received a patent for his invention in 1904. However it was Nikola Tesla who discovered that frequency could be used to detect the presence of vehicles as well as their course. The succeeding years saw American and European scientists develop various radar devices.