Java is a programming language originally developed by Sun Microsystems. Questions here should be about the installation, configuration and troubleshooting a JVM (Java Virtual Machine) or a JRE (Java Runtime Environment). Programming questions (unless directly related to Ubuntu) should be asked ...

learn more… | top users | synonyms

0
votes
0answers
14 views

Java applications show title-bar only with multiple monitors

I'm having an issue with Ubuntu, Java and multiple monitors. I am running Ubuntu 14.04.2 LTS. Java 1.7.0_80 (application requirement) and a laptop with a monitor hooked up via VGA. The issue is when ...
0
votes
1answer
19 views

I'm trying to install Oracle Java sdk at the final i'm getting Error

bash: /usr/bin/java: cannot execute binary file: Exec format error
0
votes
1answer
19 views

Make a program automatically take higher priority?

I'm using my Ubuntu OS to play Minecraft. I can get the game to run a little faster by closing my other programs and giving the Minecraft java process a higher priority via the System Monitor. The ...
0
votes
0answers
8 views

Hadoop Hive unable to move source to destination

I am trying to use Hive 1.2.0 over Hadoop 2.6.0. I have created an employee table. However, when I run the following query: hive> load data local inpath '/home/abc/employeedetails' into table ...
0
votes
1answer
18 views

Installing Oracle Java SE SDK 8u31 via apt-get

How can I install the Oracle Java SE SDK 8u31 via apt-get on Ubuntu 12.04 (prevcise)? I tried: apt-get install oracle-java8-installer from ppa:webupd8team/java, but it installed 8u45. After ...
4
votes
4answers
560 views

Create a file with limited file size

I have written a server(Ubuntu 14.04 LTS Server) - client - java program. With this program I can send a text from my android-smartphone to my server saving it to the receivedData file. The program ...
1
vote
1answer
27 views

Can Firefox run Java 8?

I've installed a few openjdk-8-jre packages (including one w/"headless" in its name) but I haven't been able to get it to work in FF. I've seen a lot of other posts over this issue, but they tend to ...
1
vote
1answer
24 views

[Sloved]Get error on install Java

I tried install Java 8 for Oracle PPA but get a error. I have viewed “sha256sum mismatch jdk-7u3-linux-x64.tar.gz ” error when trying to install Oracle Java and How to remove error message when ...
0
votes
0answers
31 views

Unable to install java on ubuntu

I am new to ubuntu so I have a very limited knowldege of it. I want to install java into my Ubuntu system. Running sudo apt-get install default-jre gives me the following error message: You might ...
0
votes
0answers
9 views

Could not initialize Applet Error

I have installed java version 1.7 on my ubuntu pc . I have latest iced tea web plugin installed on my firefox . I have installed java3d 1.5.2 api . I have set paths for both java and java-3d . Still ...
0
votes
0answers
17 views

Modifying user accounts using Java Ubuntu 14.04 LTS

I'm trying to make a java program that retrieves the list of users on the machine and allows the user to delete users that shouldn't be there. I'm really new to Ubuntu and I know on Windows you can ...
0
votes
1answer
26 views

Octave jdk and ubuntu 15.04

i need to install I/O package so i need to install jdk and set the path java home as seen here ...
1
vote
2answers
77 views

Minecraft with OpenJDK 7, I get “the trustAnchors parameter must be non-empty”

Im using Ubuntu 15.04 and OpenJDK 7, trying to run Minecraft. This is what I get. EDIT: Minecraft is working now when I use sudo java -jar Minecraft.jar but doesn't work without super user, how would ...
1
vote
1answer
18 views

Unable to run java files with external jar in Ubuntu

I tried to compile my java file with an external jar in Ubuntu 14.04. It works fine after I compile: jeremy@Ubuntu:~/Desktop/project/src$ javac -classpath lib/jsch.jar MyFile.java but I have the ...
0
votes
2answers
24 views

Installing from the internet vs repos

So I'm on a fresh install of Ubuntu 14.04 on an HP HDX 16 Laptop and have a few questions regarding installing software. First thing I did was sudo apt-get update sudo apt-get upgrade sudo apt-get ...
0
votes
0answers
64 views

Java plugin 8 update 45 is blacklisted in firefox?

https://blocklist.addons.mozilla.org/en-US/firefox/blocked/p912 states that "java plugin 8 update 44 and lower has been blocked for your protection". Which is fine and all, except that after updating ...
-1
votes
0answers
13 views

How to install java 3d api in centos 6.5 [closed]

Actually I am unable to find any method to install java 3d . Please share the method if any one knows ?
1
vote
0answers
47 views

Citrix Receiver on Ubuntu 15.04 with multiple monitors

I'm really struggling with this one... I have installed Citrix Receiver 13.1 on my Ubuntu 15.04 system. However when I actually open a Citrix session from Firefox it reports that it is version 10.5 ...
-3
votes
1answer
24 views

I tried to run Java -version, and it said “The program 'java' can be found in the following packages”

I just ran this: java -version But it gave this error: The program 'java' can be found in the following packages: * default-jre * gcj-4.9-jre-headless * openjdk-7-jre-headless * ...
1
vote
0answers
25 views

Unpacking linux-image-3.16.0-34-generic (3.16.0-34.47) over (3.16.0-34.45)

I want to change Java 8 to Java 7. I planned to Remove Java 8 First. I run the Following cmd sudo apt-get purge oracle-java8-installer I got the Following Error Reading package lists... ...
0
votes
1answer
11 views

how to install java 3d 1.5.2 in ubuntu for vm ware work station

I have installed latest version of ubuntu on vm ware work station . can any one tell easiest way to install java and java3d in it?
0
votes
0answers
9 views

$JAVA_HOME get empty after reboot or logout [duplicate]

We have a build machine running Ubuntu 1204 desktop version. We build Android source code 19 (KitKat) I properly set the environment variable using: export JAvAHOME=[my path] and the build run ...
-1
votes
0answers
18 views

updating java build version from 1.6.0_45 to 1.6.0_65

Can someone tell me steps to change from my current version 1.6.0_45 to 1.6.0_65?
0
votes
0answers
30 views

apt-get cancel pending task

Hi I wanted to install Oracle JDK so followed the steps in the following SO page http://askubuntu.com/a/521154. The first two steps went fine but the entering the last step I am getting the following ...
0
votes
1answer
171 views

How to remove the binary format already installed by openjdk-7

Platform: Ubuntu 15.04. During building android 4.4.2_r1/ or phablet, it's stopped by the message: "You are attempting to build with the incorrect version of java. Your version is: Picked up ...
1
vote
2answers
226 views

Error opening zip file or JAR manifest missing : /usr/share/java/jayatanaag.jar

I've made a mistake by: "sudo rm -rf /usr/share/java" Now, every check version by "java -version" the output messages is: "Picked up JAVA_TOOL_OPTIONS: ...
0
votes
0answers
18 views

ERROR java.io when program exexution

I was there during program execution vanetMobiSim with the problem below and does not trace files for input simulator ns2 . java.io.FileNotFoundException: vanetsim.xml (No such file or directory) ...
0
votes
0answers
20 views

php-java bridge Error: Could not connect to server

I'm trying to set up php-java bridge for the past day and cannot figure out what is not working. I have Apache2 and Tomcat7 running JSP server pages work fine. But PHP pages produce an error. I'm ...
0
votes
0answers
14 views

closing socket ,java.lang.outofmemory

I am using kafka server ,while running tail2kafka I am getting an error mentioned below Error : ERROR Closing socket for /127.0.0.1 because of error (kafka.network.Processor) ...
0
votes
0answers
61 views

Problem with Java 8.45 instalation

I tried to install java 8.45 wine but the installation wont even start so I tried to download older version and update it but the update fails to download the patch. Does anyone know what to do with ...
0
votes
1answer
121 views

How to path set in Ubuntu 15.04 of Java , download the version of java-8-oracle?

I am new to Ubuntu.Recently we changed my OS to Ubuntu 15.04 . I am installed java-7-openjdk-i386 from "Ubuntu Software Center " and when I use the "Andriod Studio" then it highly recommended me to ...
0
votes
0answers
8 views

Help Needed With After-Que Content Filter Reading Incoming Message, Content Filter Made With Java Program

I am trying to make a postfix after-que content filter with a java program. I am having trouble reading the message as it comes into postfix with the java program I wrote. My java program listens on ...
0
votes
1answer
23 views

Execute scripts and Java programs from apache/PHP

I'm trying to allow apache and PHP to execute a script I have written that is located in /usr/local/lib the script in question is called "pathy" has been added to the path in my .profile, and I can ...
0
votes
1answer
36 views

How is it possible that I can execute JAR file from shell?

I always thought, only executables in UNIX/Linux are ELF-files and shell scripts. But i found that it is possible to use just $ ./file.jar instead of $ java -jar file.jar. How are JAR-files special? ...
2
votes
2answers
137 views

Problem with Java while trying to run pycharm-community-4.5

I've just installed pycharm-community-4.5 into my Ubuntu 14.04 (64 bit). After installing I ran the command /opt/pycharm-community-4.5/bin$ ./pycharm.sh to run pycharm but the terminal showed me some ...
1
vote
0answers
44 views

semantic_map-knowrob

I'm having some problems with the rospackage knowrob_gui knowrobGUI. I need it to build a semantic map that i have to integrate with my owl file.I started following this guide: But when i run the ...
0
votes
0answers
48 views

Installing JDK 32 bit on 64 bit machine through wine

I am trying to install 32 bit JDK through wine but it encounters an error. When installing 64 bit JDK it installs it, but when i search it in the specified folder it isn't showing. Any idea how to ...
0
votes
0answers
76 views

Install JavaFX scene builder 2.0 on Ubuntu 14.10

I am beginning my work on a JavaFX application for which I am using Intellij Idea ide. I have Java 8 installed on my system and I can see JavaFXSceneBuilder 1.1 in my system installed. But as I read ...
2
votes
1answer
47 views

Can't run minecraft

I have Oracle Java, I am opening it as an executable. Minecraft runs perfectly on my Windows computer, but I want it on my Ubuntu laptop. When I open Minecraft I get as far as the launcher, but ...
0
votes
1answer
111 views

Open Terminal at Startup and run Java application

Here am I again after successfully installing Ubuntu MATE 14.04 with the help of AskUbuntu (thanks a bunch!) What am I trying to achieve now is the following: Launch a Terminal with root privileges ...
0
votes
0answers
20 views

Minecraft script wont run

In /etc/rc.local I have the following sh /path/to/file/myscrip.sh & #Go here Run this script. in the background I followed that path to confirm that it's pointing the right place on my ...
2
votes
2answers
33 views

what is the minumim required packages for installing open java 8

What are the minimum packages required to install open java 8? Available packages: openjdk-8-dbg openjdk-8-jdk openjdk-8-jre-jamvm openjdk-8-demo openjdk-8-jre ...
1
vote
0answers
29 views

Android studio. java.lang.runtime.exeption [closed]

Recently i moved to Ubuntu and i was able to use android studio without any problems then i had to reinstall ubuntu and now when i try to lunch android studio this message pops up Internal error. ...
3
votes
2answers
45 views

Automatically doubling the value of numbers in a string in multiple files

I'm trying to modify Java source code in numerous .java files that contain strings similar to this: private static final Height biomeHeight = new Height(0.1F, 0.2F); There are over 75 and I'd like ...
0
votes
0answers
23 views

Run jar from Nautilus - OpenJRE disappeared!

Although I'm frequently using the command line terminal, I find it very irritating when I cannot execute applications from Nautilus. I sometimes write small Swing based Java apps and I've just ...
0
votes
0answers
18 views

systemtray icon from eclipse's SWT not visible

I try to add an icon to systemtray using eclipse's SWT, however I can't make it visible. What could be a problem? I googled some posts telling to whitelist 'all' usingdconf-editor so I added 'all' ...
-2
votes
1answer
70 views

Problem with JDateChooser, error while getting the date [closed]

I'm using JDateChooser, however I can not retrieve the date I enter and always get a null object. dateChooser = new JDateChooser(); Date dateFromDateChooser = dateChooser.getDate(); String dateString ...
1
vote
2answers
43 views

Why can't I delete a folder in my trash?

So I downloaded a "cracked" version of Minecraft. STUPID, I know and understand the dangers. Anyway, the download put a folder called "minecraft" on my computer. it contained a .png and a .jar file. ...
0
votes
0answers
12 views

Using GNU compiler and JRE in Wine applications

There is a .exe application that I want to run and it needs JRE, to making sense, it is an IDE based on Eclipse but it is not Eclipse itself. Also in this IDE for compiling, it uses g++ as compiler. ...
0
votes
0answers
31 views

Mouse and keyboard stuttering, Chrome, Java Script

This is 14.04 LTS, stock, unmodified Ubuntu. What is wrong here? How do I fix the mouse and/or keyboard problem? For the last week, I have seen, at power up, an apport request to report some problem. ...