Implementations are permitted to make certain optimizations to initialize-instance and shared-initialize. The description of shared-initialize in section 28.2 mentions the possible optimizations.

Initialization arguments are checked for validity in each of the four situations that use them. An initialization argument may be valid in one situation and not another. For example, the ...

Developers who create a runnable Java class, be it for a ‘Hello World’ demonstration or to kick off a fully featured enterprise application, will enjoy the following technical benefits when using ...

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Static initialization blocks are executed when the class is loaded, and you can initialize static variables in those blocks.

Minecraft Java Edition players can use the new snapshot update to get a brand new block type that gives even more control to creators.

Get a hands-on look at Java preview features, such as the JDK 13 text blocks, with this video tutorial that lays out how to run and compile to proper code in five easy steps.

The module system and REPL tool have received widespread attention, but Java's newest release has much more to offer. This series introduces other enhancements to Java 9, beginning with the new ...