Understanding type compatibility is fundamental to writing good Java programs, but the interplay of variances between Java language elements can seem highly academic to the uninitiated.

The language also supports higher-order functions ... what is called a “platform type” that behaves exactly like a Java type, meaning that is nullable but can generate null-pointer exceptions.

In Java Futures at QCon New York, Java Language Architect Brian Goetz took us on a whirlwind tour of some recent and future features in the Java Language. In this article, he dives into Local ...

which becomes a permanent feature in Java SE 16 (March 2021). The first phase of pattern matching is limited to one kind of pattern (type patterns) and one language construct (instanceof), but ...

But Java 9 isn't that far off. Both versions are likely to change how the language works in pretty profound ways, with the introduction of immutable types, be it as value types or structured arrays, ...

Daniel Kaplan asks: I come from a statically typed language background (Java). In Java, you have to return a single type from every method. For example, you can't have a method that conditionally ...

Every vendor provides a custom-built JDBC driver to marshal SQL queries back and forth from your Java app to their specific database. The Type 1 JDBC driver is simply a JDBC-ODBC bridge. The Type 2 ...

A "type hierarchy" is a system for organizing type within the ... Ongoing adoption of convenient code actions (e.g., new Java language features) and eventually reach feature parity with those provided ...