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Closed 7 years ago.
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How can I install 32 bit JDK on Ubuntu 64bit? I need to install it as I am having some problem with eclipse for android development.
The OpenJDK is part of Ubuntu's main repository, so it can be installed with the usual Ubuntu tools. You want package openjdk-7-jdk or openjdk-8-jdk.
Thanks to the "MultiArch" feature Ubuntu inherited from Debian, you can install the 32-bit version of a package on a 64-bit system using the usual tools, such as apt-get or aptitude. Just append :i386 to the package name. For example:
sudo apt-get install openjdk-7-jdk:i386
Any required i368 libraries will then be installed automatically.
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Closed 2 years ago.
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When I try to download Java, I download JRK. I want to download JDK, but I do not know where to download from. Can anyone help?
I am running Windows 10.
if you are on debian/ubutu and want OpenJDK, then this command should suffice -
sudo apt install openjdk-15-jdk
for CentOS and RHEL based Linux -
sudo yum install openjdk-15-jdk
for Arch Linux -
sudo pacman -S openjdk-15-jdk
If you are on windows or mac, its better to go ahead download Oracle JDK after accepting their terms & conditions from they site -
Oracle JDK 15
EDIT:
I don't have enough points to comment. May this answer increase my reputation such that I can comment, from next time
You can download multiple versions of the JDK at: Java SE downloads (version 15, version 11, and version 8 are currently available).
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Closed 8 years ago.
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im trying to install eclipse on my mac (32bit). There is a pop saying that i need to use the latest jdk and from java.com the jdk i need is not available to 32bit running osx. The jdk they have for mac is 64bit version only. Any suggestion on how to fix this error?
I am afraid that JDK 1.7 is only available for 64bit OS X versions. If you are asked for JDK 1.7 you are probably trying to install Eclipse 4.4 (Luna). What you can do is install Eclipse 4.3 (Kepler). This works with JDK 1.6. Apple has its own version of JDK, and its probaby installed by default. If not i guess you can use Software Update to get it.
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Closed 9 years ago.
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I 'm use to work with Netbeans 7.2.1 on ubuntu 12.04.
Since the update on july 24, it's no more possible to create projects with it. That comes from the update of the openjdk, as mentionned on this topic.
The more convenient solution seems to use oracle-java instead of open-jdk. Hopefully, there are plenty of docs explaining how to switch from one to the other.
Nevertheless, I encounter an issue while trying to install oracle-java7 on my ubuntu.
In a terminal I type in sudo apt-get install oracle-java7-installer
Up to there, everything is going well, but then, the connection to edelivery.oracle.com fails because timeout expires
I'm behind a company proxy, so I assume the problem may come from that. But I'have no clue how to resolve that.
I have Linux Mint, I don't like relying on apt to have Oracle Java, so I did this:
Download the JDK from the Oracle website.
Unpack it in /opt/jdk_17
Create a link from /opt/jdk to /opt/jdk_17 (so every time I update the JDK I just need to update the link)
Add JAVA_HOME=/opt/jdk in /etc/environment
Update (or add) PATH to include /opt/jdk/bin
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Closed 10 years ago.
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Would there be any technical differences if I installed Java from an RPM versus just running the available binary? I am running on CentOs 6.3 and Java is 1.7
Depends what you mean by "technical differences" and "just running the available binary" but, no, there is no difference to running the bundled RPM version of the JRE/JKD from the exact same JRE/JDK, from the same manufacturer, for the same version, for the same platform and for the same architecture (32/64bit) from a downloaded TGZ.
An Operating System bundled JRE/JDK may have bundled extra libs, security configuration, certificates which may be different to a vanilla TGZ.
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Closed 11 years ago.
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i'm using Netbeans on Ubuntu, when i write top command i notice that Java causes like 100%+ cpu usage. Is there anything to do to speed up Netbeans ? can i download another JRE on ubuntu to speed it up (i'm using OpenJDK).
Thanks .
Another item that helps me, apart from replacing OpenJDK with SunJDK is the "Scanning Sources" which can be disabled if you goto Tools -> Options -> Misc -> Files and uncheck the Enable "auto-scanning" of sources.
I am not 100% sure what that option does, but it speeds up my projects. Also I would try NetBeans 7, they have made massive leaps and bounds in the newer versions from the older (not knowing what version you are using).
Yes, it's well known that Netbeans runs slower with OpenJDK.
Your question has been answered on AskUbuntu before:
https://askubuntu.com/questions/5567/how-to-install-the-sun-java-jdk
Enable the partner repository and then install Sun Java with:
sudo apt-get install sun-java6-jdk
I would:
Replace OpenJDK with Sun's JDK. OpenJDK's performance is still not upto par.
I would read this (a bit dated, but most of works with some changes).