Monthly Archives: October 2021

Creating an Ext4 Filesystem Image File

Follow the steps below to create a disk image file formatted for the ext4 filesystem. (Note that steps 2-4 are adapted from a similar tutorial currently posted at the URL “https://forum.xda-developers.com/t/guide-how-to-create-ext4-images.1974014/”.) 1. Open a Linux command prompt in the newly … Continue reading

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Compiling Java Packages and Subpackages from the Command Line

The packaging system in Java can be tricky for the beginner to navigate. Follow the steps below to create, compile, and run a test program that creates a Java program whose classes belong to a root package and a subpackage. … Continue reading

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