Oct 2, 2019 · (1) applicationContext.xml is obsolete with Spring Boot. (2) Package names should use all lowercase; compare with your import statements. (3) @ComponentScan and similar …

Aug 27, 2020 · I have a bunch of @Data classes using Lombok and I want to migrate all of them to use the new Record functionality available in Java 14. I know it's a little bit earlier but this is …

I mistakenly added files to Git using the command: git add myfile.txt I have not yet run git commit. How do I undo this so that these changes will not be included in the commit?

Dec 2, 2021 · Discussion on specifying --add-opens at project level and ensuring its effective application in Java development.

Mar 14, 2012 · 402 That should have been java -jar app.jar instead of java -jar "app". The -jar option only works if the JAR file is an executable JAR file, which means it must have a …

Jul 12, 2011 · What is the best way to use the values stored in an Enum as String literals? For example: public enum Modes { some-really-long-string, mode1, mode2, mode3 } Then later I …

Dec 17, 2009 · According to the java.io.File Java Docs The default temporary-file directory is specified by the system property java.io.tmpdir. On UNIX systems the default value of this …

Nov 18, 2014 · java -version pause And after running this bat, I see right version of Java. But when I close this CMD and open a new one and type "java -version" it says that I still have …

The whole structure with Java 11 has changed. Java is now a modular platform, where you can create your own "JRE" distribution with specifically the modules that you need to run your …

While hunting through some code I came across the arrow operator, what exactly does it do? I thought Java did not have an arrow operator. return (Collection<Car>) …