Hiding static methods in Java
What hidden static methods are, how to hide static methods, and what the difference is with overriding methods.
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Everything I learned from studying OCA after two years of Java web development
Everything I encountered for the first time, while studying OCA.
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How to install Apache Tomcat on macOS 10.14 Mojave
You can run Apache Tomcat within 5 minutes on macOS 10.14 Mojave.
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The difference between final, finally, and finalize in Java
What is the difference between final, finally, and finalize in Java?
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Compare enums with == instead of equals() in Java
TIL you should compare enums with == instead of equals() in Java.
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Passing Default group to form(...) in Play 2.6.x when using group constraints in forms
TIL if you pass custom groups to the form(...) method in Play 2.6.x, you also have to pass the group javax.validation.groups.Default explicitly—if you want any of its fields taken into account during the validation process of a form.
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HashSet in Java is backed by a HashMap instance
TIL that a HashSet in Java is backed by a HashMap instance.
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Effectively final variables in Java
TIL what effectively final variables in Java are.
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In Java 6 == 24
TIL that in Java 6 equals to 24.
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How to run JShell on Mac OS X when Java 8 and Java 9 are installed
TIL how to run JShell on Mac OS X when both Java 8 and Java 9 are installed.
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Escape single quotes when using Java MessageFormat
If you are using Java MessageFormat, you will possibly encounter the issue that single quotes are not rendered.
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Keep track of datetime an entity was last modified with Ebean in Play
TIL that Ebean helps you to keep track of the datetime an entity was last modified.
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