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1.Depending on the manufacturer's design decision.
2.There are several versions of Java. J2SE is for desktops and J2ME is for Pocket PC's. J2ME is a small subset of J2SE.
3.No. Due to the fact there are too many variables. What if there was an unknown WiFi AP that it didn't connect to and you got an unexpectedly large bill or it did connect to and your data was transmitted insecurely?
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