TheWriter
In this example we will see how to use recursion methods in Java to walk over the whole JSON structure. We will use Jackson libraries to get information about the JSON nodes. We will check if the node has other nodes. If so, then we will check them too. In JSON this can be object … Read more
This is a simple example of a mp3 player created with JavaFX. It has a button to open and play the track, pause, resume and stop buttons with their respective functionalities. To play the music we use MediaPlayer class -> The MediaPlayer class provides the controls for playing media. MediaPlayer provides the pause(), play(), stop() … Read more
This is a simple gear wheels example, each gear is created by two rectangles in a specific degree and spinning around. A RotateTransition is used to rotate both rectangles by 360 degrees repeatedly over a period of 5000 milliseconds, creating the illusion of both rectangles spinning together. All gears will be rotating in the middle … Read more
In this example, let’s see how to make a ball which bounces back when it reaches the borders of the application: A red Circle object is created with a radius of 30 pixels. The Circle is then added to a Pane, which is set as the root node of a Scene with a width of … Read more
Simple Java FX application which creates and removes elements from the list. This is a basic example of a To Do List application using JavaFX. The program creates a window with a text field for inputting new tasks, a list view for displaying the tasks, and two buttons for adding and removing tasks. The tasks … Read more
In this example we will use Java FX and create animation in which Earth will go around the sun: Maven pom.xml dependencies of JavaFX: Java code: This program creates a simple animation of the Earth going around the Sun using the JavaFX library. The animation is created using a PathTransition object, which animates a node … Read more
Let’s see we can operated and use VIM text editor. To open the text document with Vim use command: vim [filename] Vim has two modes. Command mode and edit mode. By default when we open file command mode is active. To exit from the file in this mode type: :q If you want first to … Read more
Grep command is very useful and powerful command to search words in text files. Here is exploitation and some examples: grep [search word] [place to search] -> global regular expression print. It will print the lines which the [search word] is found in the [place to search] Search word inside text.txt Search word inside all … Read more
This is a list with some useful basic Linux commands: sudo [command] -> It will execute command with elevated (administrative) privileges. pwd -> This command is path to current working directory. Sometimes you need to check where you are in directory tree. cd [folder] -> enter a folder. If we use cd .. -> exit … Read more
How to work with Java and JSON? Sometimes in Java we need to work with different type data formats. One very common is JSON. In this tutorial we will see how to use popular Java library Jackson to read and write from JSON format. To work with external libraries like jackson-databind we can download the … Read more
