java - How to find all the input data from the internet onto your device -


so i'm trying create program in java on computer. needs take data sent internet computer, such data sent weather app or news app (as in use data sent computer). i'm self taught, wondering if knew ways go doing this? thinking using command line , seeing if there way view information sent computer? appreciated!

if you're looking data that's been sent computer download utility called wireshark, or use tcpdump analyze it. i'm not sure explanation trying though. trying view data coming in , out of computer? trying experiment , see how write application communicates on tcp/ip, udp, web based protocol?


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