A New Raspberry Pi 3 Model A+ Has Arrived With Bluetooth 4.2 and Dual-Band Wi-Fi For $25 (pcworld.com)
Raspberry Pi has introduced a new version of one of its most popular models just in time to stuff your stocking: the Model A+. And this time around, it's even more attractive. From a report: The Raspberry Pi 3 Model A+ costs $25, $5 more than the previous generation, but has a lot more going for it. Just like the top-of-the-line Model B+, the new Model A+ has a 1.4GHz 64-bit quad-core processor, and you'll also get dual-band Wi-Fi (2.4GHz + 5 GHz), a feature that was missing from the previous A+. And you'll have to use it, since the A+ doesn't have an Ethernet port. It does, however, have Bluetooth 4.2 on board. For $10 less than the $35 Model B+, you'll also only get a single USB port (versus four on the B+) as well as 512MB of RAM (versus 1GB on the B+). But otherwise, the devices are identical, with a full-size HDMI port, CSI camera port, DSI display port, stereo output and composite video port, and a micro SD port. The Raspberry Pi 3 Model A+ isn't the cheapest Pi model available -- the Zero costs $5 and the Zero W costs just $10 -- but it rounds out the options nicely. The new model is available now through Raspberry Pi retailers.
This can't run Java, it's in the same "toy" class as the Arduino and C/C++ toy project boards.
All you need for Java is a few cores, preferable i3 or better, a few GB of ram, [at least 8 ] , and a few 100GB of disk space for helper libraries and classes.
for "hello world" type programs, this is the way to go. Anything beyond that, it's useless.