Learn the four types of polymorphism in Java, then start using subtype polymorphism to execute different forms of the same Java method.

Learn three ways to document your code, then get started using identifiers, types, literals, and variables in Java 12 ...

To override default document identifier generation algorithms, you can register custom conventions per an entity type. You can include your own identifier generation logic.

Data Types in Java Every variable in java has a data type. Data types specify the size and type of values that can be stored in an identifier. Java language is rich in its data types. The variety of ...

Java 9 could introduce modularity and new value types. Improved modularity could reduce app size and improve startup performance. New value types will make it easier to program arrays.

Check if a non-ASCII Java Unicode character can start identifiers. This is like ascii-identifier-start-p, but for Unicode characters that are not ASCII. For now we leave this predicate almost ...