I am running DrJava on JDK 8 and I faced the same issue when I ran DrJava Windows App. I now run DrJava jar file instead of windows app. This may also happen if you're trying to run your code which has been modified (accidently or otherwise) after your last compilation. Just compile it again (shift + F5) and run (keyboard - F2).

May 23, 2020 · Thank you. Aren't jdk and java the same thing? if the latest version of jdk is 14.0 should the latest version of java be 14.0 as well? To write java programs and run them successfully on any IDE (DrJava) do we install jdk (version 14) or the java (version 8)?

Aug 30, 2019 · So DrJava searches for tools.jar (the library file containing the compiler in Java JDK distributions prior to Java 9) in common locations on Windows, Mac OS X, and Linux to find a compiler (more accurately, what were common locations in 2007).

Jul 9, 2014 · I am using DrJava's plugin for Eclipse (4.3), and the interactions pane "view" is acting funny. (Very similar to this guy from 2011). Unfortunately, his question has no responses. I also found this,

Sep 15, 2015 · I try running this program and I get a static void error. I am new to this and I have no idea how to fix this problem so any input would be helpful, thank you ...

Using DrJava, how do I shift the characters stored in a 2d array and store in a different location using a Caesar shift cipher **After collecting a number between 1 and 4 from the user, I need to use a Caesar shift cipher to shift every letter in the array forward by the number the user provided.

Jan 12, 2024 · According to the DrJava documentations, the current beta version (drjava-beta-2019-220051 that's what did you download probably) is compatible with Java 8, which is the only supported version of "traditional" Java. Later versions of Java use a new package system and distribution format breaking compatibility with Java applications that access files in the …

Feb 13, 2013 · I'm using DrJava for a simple java project and but need to set the environment variable R_HOME. Can somebody tell me how to do this? I can do it in the command line and test it using: String

Feb 28, 2021 · Oh, that was me from another account. Apparently, someone did not get the question (how do I fix this) and voted the question to be closed while I was asleep. I did edit this to be a bit clearer now. I tried using an older version and it is currently working but if anyone has a fix to this, still let me know.

May 19, 2018 · My school forces us to use Dr Java and I'm having trouble getting it to use the JDK compiler instead of the Eclipse compiler.