This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

A preview feature in JDK 22 combines the strengths of virtual threads and parallel streams to improve optimization and performance. Here's how it works.

Before attempting to create a file path to the SD card in an Android application, your Java code must first check that an SD card is mounted on the device, as this is not always the case.