Help - Install JDK for Debian

[iTzVoko]

Questions

• How do I install JDK (Java Development Kit) for Linux Debian?
• and how do I know if I'm 64bit or 32bit?

What I'm try to do

I'm try to work with cordova, and it's require me an Android SDK and JDK to build the app.

I'm ready to answer your questions if my questions is not clear. Thanks

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Thanks for your help in improving UserLAnd!

[oskar-skog]

apt is broken on Debian on UserLAnd, you'll need to edit /etc/apt/sources.list and then run sudo apt-get update See: https://github.com/CypherpunkArmory/UserLAnd/issues/1598

According to https://wiki.debian.org/Java the you should install default-jdk, so sudo apt-get install default-jdk. For Debian 10 (which is what UserLAnd comes with), the JDK is version 11.

You don't need to know if you're on 32-bit or 64-bit is you're using apt. But to check you can run uname -m, it should be aarch64 on 64-bit.

[iTzVoko]

But to check you can run uname -m, it should be aarch64 on 64-bit.

That's the problem bro, when I type uname -m it's show me armv8l what does that mean?

[oskar-skog]

when I type uname -m it's show me armv8l what does that mean?

It looks like you have a 32-bit UserLAnd on 64-bit CPU. What does lscpu say?

Edit: I think the kernel is 64-bit, but UserLAnd is 32-bit.

[iTzVoko]

It looks like you have a 32-bit UserLAnd on 64-bit CPU. What does lscpu say?

Actually, I'm using Samsung Galaxy J5, Android version 6.0.1 and I'm 32bit.

I tried lscpu command in my other Android phone and this is the output:

root@localhost:/home/vkshell# lscpu
Architecture:        armv7l
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
Vendor ID:           ARM
Model:               0
Model name:          Cortex-A53
Stepping:            r0p0
CPU max MHz:         1190.4000
CPU min MHz:         200.0000
BogoMIPS:            38.40
Flags:               swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 evtstrm