I know that this question has been floating around for ages now ...
Java in Xcode 4.
I don\'t need any recommendations (Eclipse, Netbeans e.g.)
Is it possible to do that?
YES this is possible.
1) File > New > New Project > Other > External Build System 2) Give it some name and save it somewhere. 3) File > New > New File > Other > Empty 4) Give it a Java-friendly name. In my example, use "HelloWorld.java" 5) Copy the contents below into the file and save. 6) File > New > New File > Other > Empty 7) Save as "Makefile". 8) Copy the contents below into the file and save. 9) The "Run" (>) button should at least compile your Java now.
Now it gets tricky. You don't have to do the next part. You could just open a Terminal to your project directory and run "java HelloWorld" if you want. I strongly suggest that. You can also just type "make" and use Xcode purely as a text editor.
9) Project > Edit Scheme > Debug > Info 10) Executable > Other > type ^⌘g > type "/bin" > choose "sh" 11) Arguments 12) Set "Base Expansion on" whatever you named your target 13) Add an argument '-c "/usr/bin/java -classpath $(PROJECT_DIR) HelloWorld"' for this example. 14) Cross your fingers 15) Click the "Run" (>) button.
An Extract from Apple Support Community