Jdk for eclipse4/9/2023 ![]() ![]() This can add confusion when really you just want to compile and run a single java file or two for a homework assignment or just learning in general.įrom command line you can compile your program using javac MyProgram.javaįor compiling projects that involve multiple class files and other dependencies look into using make files. ![]() They often, by default, create a bunch of directories and files related to project management and version control type stuff that you don't really need at the start. These versions have a longer support timeframe. It is suitable for running all workloads. It is an enterprise-grade VM designed for low memory footprint and fast start-up and is used in IBM’s JDK. The problem is they can be verbose and confusing for people just starting out. Eclipse OpenJ9 is the VM from the Eclipse community. You then have to go to Compiler and set the Compiler compliance level. Learning how to use an IDE is a process in it's own right. Click on the Window tab in Eclipse, go to Preferences and when that window comes up, go to Java Installed JREs Execution Environment and choose JavaSE-1.5. IDE's are powerful tools and they're useful for doing all the boring setup work among other things. So create a shortcut to eclipse for each project you want to have different jre. It's always a good idea to learn to write code without the use of an IDE when you're just starting out and just use some text editor for linting such as VScode or sublime and the like. When starting eclipse, you can give -data argument as location of the workspace. ![]() Same goes for access modifiers when you're writing your code. info on modules Hereĭon't just arbitrarily include things in your projects if you aren't sure what they do. Never be afraid to just copy and paste errors into google, chances are you aren't the first one to run into any given problem that pops up.įor something like this, module-info.java is unrelated, It's for declaring dependencies and isn't needed unless you know you need it. "Error: Could not find or load main class eclipse" I found this buy googling the exact error you posted plus the word eclipse. Read this for help with your eclipse related error.
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