Java 23, now generally available, includes previews of module import declarations, stream gatherers, structured concurrency, scoped values, and a class-file API. And much more.

Now available for production use, Java 19 features structured concurrency, virtual threads, pattern matching for switch expressions, a vector API, and a Linux/RISC-V port.

For new Java programmers, the JOptionPane class is a great visual and user-friendly introduction to user input and Swing-based programming. Here's how to get started.

/* Code example to print a double to two decimal places with Java printf */ System.out.printf("I love %.2f a lot!", Math.PI); Without Java printf, double formatting is a difficult challenge. But with ...