I have a C/C++ Eclipse. I want to import java project into my C/C++ Eclipse for my development purpose. I have tried importing. But it is not opening as a java file. It is showing the java files as Just text files?
How can i achieve this?
Your C++ version of Eclipse doesn't recognize Java syntax and Java source files. If you want to code in Java, you should download the Java version of Eclipse.
What you need is Java development tools (JDT). You shall check the version of your Eclipse C/C++ first, then install the same version JDT.
Refer this answer https://stackoverflow.com/a/6701354 for install via update site.
You can also download JDT Runtime Binary for offline install.
Related
I give a computer programming course I have written, and I recently switched to recommending Visual Studio Code in the course. We are starting out with the basics, so I just wanted a simple editor. We started learning Git, and one student's repository suddenly had all sorts of cruft in it, including:
.settings/
.vscode/
.classpath
.project
In particular the .settings directory had all sorts of Eclipse settings, such as I would expect to see in an Eclipse project.
The student explained to me that these came from VS Code after installing its Java extensions. But why are the VS Code Java extensions creating Eclipse files? And where is all this documented, so that I can update my lessons with the exact details and avoid this problem in the future?
Thanks in advance.
Simplified the Language Support for Java™ by Red Hat is the headless Eclipse Java IDE integrated into Visual Studio Code via the Language Server Protocol (LSP). See the self-description of the extension:
Provides Java™ language support via Eclipse JDT Language Server, which
utilizes Eclipse JDT, M2Eclipse and Buildship.
Except for .vscode/, the mentioned files are Eclipse Java IDE files.
Because in Eclipse these files are not intended to be edited manually, there is little or no documentation about them (the Java compiler settings in .settings/org.eclipse.jdt.core.prefs are similar to the command line arguments of the Eclipse batch compiler).
For example, the documentation of the Java extension recommends using the Eclipse Java IDE to edit the formatter settings (which are also stored in .settings/org.eclipse.jdt.core.prefs) and concludes:
No it's not an ideal solution, but it should be done only once, unless
you regularly change your formatter settings.
Is there any web site that I could see the source code for the Java standard library? Most so the two classes java.lang.* and java.net.* ??
Please install Java JDK (Java Developer Kit), which is not the same as Java JRE (Java Runtime Environment).
The Java JDK contains the Java source code.
And you'd better to use an IDE (Integrated Development Environment) such as Eclipse or NetBeans to develop Java programs.
You can look for the java code via the IDE tool.
Of course. You could find it in the JDK, but also online. I also use the online version, because I find it faster as to open the folder with the JDK, brows through all the files and so on. Just google "java source object".
http://www.docjar.com/html/api/java/lang/Object.java.html
You need the JDK (JAVA SDK) installed and source of class library is at (on Windows):
C:\<Program Files>\Java\<JDK>\src.zip
Like
C:\Program Files\Java\jdk1.7.0\src.zip
Java source code is available in JDK distribution. If you have installed JDK on your machine, in JDK directory you'll find src.zip. For example, in my windows machine source code is available at: C:\Program Files\Java\jdk1.6.0_12.
Alternatively, you can find Java source code online at: Java Source Code
Thanks,
Mrityunjoy
I am using Eclipse galileo. I want to add java decompiler to my eclipse. I tried multiple URLs but they are not compatible with galileo.
Please share the decompiler URL location for Eclipse galileo.
Thanks,
Anil Kumar C
I've been using Java Decompiler JD-GUI for sometime, which is a standalone application, they do have an JD-Eclipse version. You could try it out if you like. The tool is quite basic but does what it's supposed to.
I have downloaded and installed Eclipse for PHP Developers from here:
http://www.eclipse.org/downloads/
I also need to write some Java applications. How can I add Java support to my PHP Eclipse version? Do I have to install second Eclipse for Java?
You should be able to install the JAVA components, using Help > Install New Software.
In the list of components, there should be Programming Languages > Eclipse Java Development Tools.
Here's a screenshot :
(source: pascal-martin.fr)
Because it is so trivial to have multiple Eclipse instances, I do just that to seperate php and java environments. This reduces the plugins loaded and you can somewhat keep Eclipse lean. Of course the choice is totally yours.
On my version of eclipse:
Help menu->install new software
Choose the download page for your version of eclipse
There is a category "programming language" which should have Java.
What you downloaded was basically the eclipse core project and a list of standard "addon" packages that might help in PHP development. According tho this comparison chart you're only missing two packages to now make eclipse ready for java development:
GEF
JDT
You could just download those two packages from eclipse by going to
Help->Install new software
to have the standard "Eclipse for Java Development" setup.
I am getting this bad version error as shown below. How to fix this. Do I need to have a separate jar file for each version of java?
(source: sourceforge.net)
How to fix this.
Is this a plugin that you created, or did you download it from somewhere?
I've never seen this myself, but I suspect that you are running Eclipse using an older version of Java (e.g. 1.5) and trying to use a plugin that was compiled for Java 1.6. Assuming that is the case you can:
upgrade the JDK used to run Eclipse to 1.6,
try to find a version of the plugin that was compiled for the Java 1.5 platform, or
download the plugin sources and build it for Java 1.5 yourself.
Do I need to have a separate jar file for each version of java?
No. A JAR file built for a Java 1.5 target platform should also work on a Java 1.6 platform. (Just not the other way around ...)
I got similar kind of error once and I was not able to fix it. And I ended up removing the plugin (EMF Plugin) and installing it on a new setup of Eclipse.
Now, I use Yoxos On-demand where you can create/add/remove Eclipse plugins with no effort. This is the best Eclipse customizer I have seen.
You are running on an older version of Java than the code was compiled for.