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As much as I enjoy creating programs that run in a command line / terminal, the majority of end users prefer a program to have a Graphical User Interface (GUI). I have managed to put a GUI on the front of some of my Python projects, so today I am going to look at creating … Continue reading Creating A GUI Form Window (Java)
One of the earlier programs I wrote in Python was a Caesar Cipher (later updating it to add a GUI). As part of my recent Java learning I have created a Caesar Cipher in Java. If you want to read more about Caesar Ciphers then please check out: https://en.wikipedia.org/wiki/Caesar_cipher I have placed the Java file … Continue reading Caesar Cipher (Java)
As my Java adventure continues I look today at returning values from methods. So far the methods I have discussed have completed a task but have not returned any values to the main method. The previous methods have been defined as: public static void methodName(){ method } I've put the word void in bold because this … Continue reading Returning Values From Methods (Java)
With my adventures looking at Java I have also been using a different IDE (Integrated Development Environment) called IntelliJ on my Macbook. However I also want to look at using Java on my Raspberry Pi. The Raspbian OS (Stretch) comes with a Java IDE called BlueJ, which is designed around Java and supporting beginners to Java. … Continue reading Installing IntelliJ IDE On Raspberry Pi (Java / Raspberry Pi)
I am continuing on my Java adventure and taking a brief look at variables within Java before tackling my first Java assignment (creating a planning assistant). Declaring Variables Variables in Java must be defined by their type: int for integer (whole numbers) e.g. -5, 5, 100000, 0 double for decimal numbers (float numbers) e.g. 3.14, … Continue reading Variables / Travel Planner (Java)
Continuing on with my learnings about Java , today I am discussing methods. Within the public class there is a main method, which can then be used to call on other methods. The other methods can be named and defined in any order and then called by the main method in the order they are required. … Continue reading Methods (Java)
Way back in October 2016 I completed an introduction to Java course via MadLab, and other than dipping into Java whilst looking at Android development I have not really looked at the Java language. However in recent times I've been dabbling with C, and that got me thinking about Java again. Java was developed by Sun … Continue reading Java Basics / Hello World In Java (Java)
Today I am having a quick play with the socket library in Python, and using it on my Rasperry Pi as a port scanner to check for vulnerabilities on devices connected to my home network. Yes, I know there are other tools available (such as nmap) that can do this but I wanted to see … Continue reading Creating A Port Scanner (Python / Raspberry Pi)
With the Raspberry Pi running Apache Tomcat it is time to secure it. HTTP (non-secure) traffic may be okay for a closed home/test environment but for a work/production environment HTTPS (secure) should be used. To show how to turn HTTPS on for Tomcat I will be using a self-signed certificate. If you are using a public … Continue reading Securing Apache Tomcat (Raspberry Pi)
Previously I have looked at Flask (Python) and Django (Python) web servers running on the Raspberry Pi. Today I am going to look at Apache Tomcat, a web server which is more geared towards running Java based applications. I'm currently looking at Java and so will be using the JDK on my Raspberry Pi. For … Continue reading Installing Apache Tomcat / Jenkins (Raspberry Pi)
