Java: Java Programming Concepts

Code examples to demonstrate Java programming concepts and related technologies.

Java Calculator Program with GUI
Java: Java Programming Concepts

Java Calculator Program with AWT and Swing Based GUI

This Java source code implements a basic calculator with a graphical user interface (GUI) using AWT and Swing. The program is structured in a way that makes it suitable for novice programmers to understand and learn about GUI development in Java. It serves as an excellent starting point for those looking to explore basic GUI applications and understand the principles of event-driven programming.

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Simple Java Contact Form
Java: Java Programming Concepts

Simple Java Contact Form

The following Java code defines a simple GUI application using Swing. It creates a form with text fields for name and email, a text area for messages, and actions buttons for OK and Cancel operations. Additionally, there is a button to change the background color of the form.

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Java: Java Programming Concepts

Java Program to Draw Star Shapes

This Java program creates a simple graphical application that draws rows of stars using Java’s Swing library. The program creates a window with rows of stars drawn on it. The Star class defines the shape of a star, the StarPane class handles the drawing logic, and the StarApplet class sets up the main frame for the application. This example showcases basic GUI programming with Swing.

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Blackjack Java Game Challenge
Java: Java Programming Concepts

Blackjack Java Game Challenge

The Blackjack game written in Java provides a graphical user interface (GUI) for players to enjoy a simplified version of the classic card game. Upon starting the game, players are dealt an initial set of two cards each, and the goal is to build a hand with a total value as close to 21 as possible without exceeding it. The game features a deck of standard playing cards, including numbered cards, face cards (King, Queen, Jack), and Aces, each contributing their respective values to the hand.

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Java: Java Programming Concepts

Java Code to Demonstrate Recursion

The Java code implements a simple graphical application that visually represents and counts blobs within a grid by using recursion. A blob is a group of adjacent filled squares in the grid. The application uses Java Swing for creating the graphical user interface (GUI) components. It includes buttons for generating a new set of blobs, counting the number of blobs, and a grid where users can click to get information about the blob size at that specific position. This Java code uses recursion in the getBlobSize method to calculate the size of a blob.

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mycplus
Java: Java Programming Concepts

A Java Application for Two-Way Chatting

This Java Code supports two-way chatting between users. It implements a client for the ConnectionBroker server, which can set up a relayed connection between a pair of such clients. There are really two functions: The user can register with the server as a client who is willing to accept a connection, or the user can make a connection with one of the clients who is waiting on the server. The code retrieves and displays a list of waiting clients when it starts. There is a Refresh button that the user can click to refresh this list (since the list of waiting clients can change from time to time).

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Java: Java Programming Concepts

Text Tool

Text Tool [code=’java’]/******************************************************* * MYCPLUS Sample Code – https://www.mycplus.com * * * * This code is made available as a

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