I’ve installed ubunut 15.04 recently and I’ve tried to install java JDK 8 but I can not, and I don’t know why. I have fallow all that commands: sudo apt-get install python-software-properties sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer And after that I checked my java version and I’ve got a error: … Read more
I am trying to run android studio on ubuntu 14.04 LTS. But when I run the studio.sh script, i am asked to set JAVA_HOME to jdk from jre. Despite the fact that I have set JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-amd64 from the environment file in etc and added my own script in profile.d, the error is still there. Where … Read more
I had to install the Oracle JDK to get Netbeans to launch (forgot about umake). Now that I have the official JVM, I want to remove each and every other JVM — all the OpenJDK stuff, including IcedTea, et. al. Can I have “one Java” to rule them all? Partly, it just makes sense, and, … Read more
I built a web application in JAVA SE 8 using tomcat 8 but my hosting provider uses java se 7 and tomcat 7 on their web server. That’s why I am getting error while deploying it. Please tell what i should do? Do i have to uninstall java se 8 and install its 7th version? … Read more
I recently installed JRE 8 and JDK 8 to use Greenfoot in Ubuntu 18.04. I know the majority of my Java install works (I can write code in atom and run it with scripts). However, when I try to launch greenfoot in the terminal, I get the following: Exception in thread “main” java.lang.NoClassDefFoundError: javafx/application/Application at … Read more
I have downloaded Oracle SQL Developer and when I attempt to run it i get the following message: These are the java settings on my computer: java -version: java version “12.0.1” 2019-04-16 “/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java” -version : java version “1.8.0_211” Java(TM) SE Runtime Environment (build 1.8.0_211-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode) which … Read more
I have already tried over Preferences-Installed JRE and I get information from Eclipse Target is not a JDK Root. Java executable was not found I’m working with Eclipse 4.12.0 on the MacOS Mojave. Installed Java JDK1.8.0 and JDK 12.0.1. If I’m going to add libraries from the Java location there is only the file libjli.dylib. … Read more
Is it possible to override the value of an arbitrary Windows registry key for a specific application lifecycle? My hope is that a temporary registry value can be set with the command line, so that I can combine it with the following batch-y temporary environment variable change (to point to the 1.7 JDK). C:\Windows\System32\cmd.exe /c … Read more
Whenever I run a Java application that has a user interface, it crashes as soon as the window opens. The window is blank white with no content and shown for about 100 milliseconds. There are no error messages when I run it with java -jar <myjar>. The program just appears to simply terminate with no … Read more
I installed java, and then realized that it was the wrong version, so I tried reinstall Java, but mid installation it said “JVM Failed to start”. I tried to install JDK 1.8.0_221. Any help would be great. Answer I found a solution. I installed java, and it gave an error. Then, I changed _JAVA_HOME to … Read more
