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Eclipse couldn't be launched beccaus of JRE or PATH i really need help
I tried to reinstall JDK but nothing changed
Before Installing Eclipse set PATH for your JDk in your computer.
Right click on computer GOTO properties and select Advanced Settings
One pop-up will appear select Environment variables and select new in user variables
Give variable name=PATH and Value=C:\Program Files\Java\jdk1.6.0_45\bin;C:\Program Files (x86)\Java\jdk1.7.0_21\bin;.
Variable value where you installed your JDK select that path and Click OK, OK, Ok
Now yo can install your IDE
Make sure your system environment variable JAVA_HOME has been set.
On windows, set the variable in system properties to some path like:
C:\Program Files\Java\jdk64bit_1.6.0_30
Or, on linux, edit /etc/profile, add the path below:
export JAVA_HOME=/usr/share/jdk1.6.0_30
Then eclipse will find JDK to launch.
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I'm trying to start programming in Java. I went to JAVA SE Downloads, clicked on the JDK 15 Downloads, selected Windows X64 Installer, agreed to the license, and allowed it to make changes to the computer. When the wizard popped up I followed all of the prompts. A screen came up that said Next Steps or close. I selected next steps which took me to the JDK documentation page. I already had that open so I went back and selected the other option and closed the installer. I selected the Windows, scrolled down to the new folder Java Development Kit, and when I opened it there was a file that led me to the Documentation page, but that was all that was there.
Am I missing a step? How do I get the actual JDK development environment?
Looking forward to starting programming in Java, but can't seem to get the platform started. Thanks for any advice, or questions that may help.
When you get to the screen in the wizard that says "Next Steps" and "Close", you are pretty much set, the JDK was installed on your computer. To verify that this is the case, you can go to C:\Program Files\Java\jdk-15\ (which is typically the default folder). To make sure that Java and the Java Compiler were added to your environment variables, open a command prompt window and type in java -version and javac -version. You should get a version number for both of those commands. If you do see the jdk-15 folder in your C: drive but don't get the version numbers in the command prompt window, you must add the java bin directory to your environment variables. You can easily find tons of articles showing how to do this on Google by searching for something along the lines of "How to add Java to environment variables".
I'm using JDK 15 on windows too. After download JDK 15, open the control panel and go to system and security. After that open at system and click at advanced system settings. At advanced system setting, open enviroment variables and select path at system variables and click edit it. After that, go to folder java that you install and open the folder bin in JDK 15. Copy the destination folder JDK 15 bin like this ''C:\Program Files\Java\jdk-15\bin'' and add new at path enviroment variable. After that, click new in system variable. At variable name I put JAVA_HOME and variable value, you copy the JDK 15 file path and paste like this ''C:\Program Files\Java\jdk-15'' (Note that you folder is not the same as mine). After that, open cmd (command promt) and type java -version to know your version. Hope this is helpful.
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I have a Java / maven project in IntelliJ IDEA, but when I try to run a test I got the message Nothing Here
First, try updating all plugins to latest versions and restarting IDEA.
The issue may be related to this YouTrack ticket. Try disabling the Gradle plugin in Settings | Plugins and removing the following lines from CONFIG\disabled_plugins.txt file + restart IDEA:
org.jetbrains.idea.gradle.ext
org.jetbrains.plugins.gradle
org.jetbrains.plugins.gradle.maven
If it doesn't help, attach your idea.log file after reproducing the issue (Help | Show Log in Explorer).
On the latest IDE, this option is more simplified.
right-click on the folder you want to be recognized as a source folder:
Mark Directory As -> Sources Root
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When compiling a project in Eclipse, I get below error:
Fatal error compiling: tools.jar not found:
How is this caused and how can I solve it?
Goto Windows -> Preferences
Java -> Installed JREs –> Execution Environment
JavaSE1.x -> JDE 1.x
If you don’t have the JDK in the Installed JRE, then
Select the Installed JRE and Add the JDK installed path
Let's try to configure your run configurations to clean install
Click on the small black arrow and then Run Configurations
After, you just put clean install in your Maven goal, like this :
And then, try to run your compilation, and we will see what happens... :)
You need to put the right Java Build path for your project.
In Eclipse:
--> Right click the project name - Properties (keyboard shortcut: [Alt] + [Enter] )
--> Libraries
--> Change the JRE7 to JDK7.
And I think the problem will be solved that way ;)
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Intellj shows a breakpoint is invalid.
I want to debug into a jar file I include in my project.
With Intellij pre 14.1 you would have to attach a source file of that project, you cannot simply debug a decompiled jar. I'm assuming you are using an older version of Intellij so you have two options:
attach the source code of that jar (Project Structure -> Attach Sources)
upgrade to version 14.1, then you can use your breakpoints as usual without attaching the source code
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I am new to the flex development.i downloaded the flex4.6 sdk and i would like to write a simple application using flex .i already installed java 1.7. My environment details are
IDE is eclipse (Helios)
OS is Linux(Ubuntu 11.04)
i tried with below links Example1 , Example2 but i am unable to understand how those examples working.
please guide me or suggest any useful links for better understanding
This Link may be helpful to you.For mine its working fine, from your second example instead of
# flex SDK home
export FLEX_SDK_HOME=/opt/flex-sdk
alias mxmlc='/usr/lib/jvm/java-6-sun/bin/java -jar "$FLEX_SDK_HOME/lib/mxmlc.jar" +flexlib="$FLEX_SDK_HOME/frameworks" "$#"'
i am using
# Make the FLEX compiler available
export PATH=/home/thomas/Software/flex_sdk_4.5/bin:$PATH
# Export the LPS home directory
export LPS_HOME=/home/thomas/Software/OpenLaszlo/lps-root
# Make the LZX compiler available
export PATH=/home/thomas/Software/OpenLaszlo/lps/bin:$PATH