data-transfer

A valid JSON Syntax is something of the kind: { "username": "admin", "password": "123" } But what if I want to transmit an array of 'users' ( given the example ), instead of a single 'user' ? Is the code below Valid JSON, according to the specifications? [{ "username": "admin", "password": "123" }, { "username": "bbvb", "password": "sdfsdf" }, { "username": "asd", "password": "222" }] And if not, what is the best way to transmit an array of values across with JSON? ( And with 'best way', I mean syntactically) Yes, your example is valid JSON - that is exactly how you want to use an array. Edit

Question related to Android for Work . My application was a device Admin privileged app and now I have modified the code which creates a managed work profile and sets itself as the profile owner. The question is, if I upgrade my application, it becomes a profile owner from device admin. Now there will be two copies of my application, one outside the profile and one inside (badged version). Is there a way if I need to transfer some data from the personal space app to the work profile app (badged version)? Lorenz Riedler The DevicePolicyManager class implements a the addCrossProfileIntentFilter

I often have to transfer large files >50GBs sometimes >100GBs between drives both internal and external during backups of our networks email servers. What is the best method of transferring these files? Command Line such as XCOPY? Possibly something robust enough to continue the transfer if interrupted due to time limits or network issues. Check out robocopy . From Wikipedia: robocopy, or "Robust File Copy", is a command-line directory replication command. It was available as part of the Windows Resource Kit, and introduced as a standard feature of Windows Vista and Windows Server 2008. For

Yamaha InfoSound and ShopKick application use technologies that allow to transfer data using ultrasound . That is playing an inaudible signal (>18kHz) that can be picked up by modern mobile phones (iOS, Android). What is the approach used in such technologies? What kind of modulation they use? I see several problems with this approach. First, 18kHz is not inaudible. Many people cannot hear it, especially as they age, but I know I certainly can (I do regular hearing tests, work-related). Also, most phones have different low-pass filters on their A/D converters , and many devices, especially