Java Code Examples

Simple Image Viewer in Java with Swing

Simple Image Viewer in Java with Swing

This Java program is a simple image viewer application designed for novice Java programmers. The program utilizes the Swing library to create a graphical user interface (GUI) with a JFrame, JPanel, and JButton components. The main functionality of the Java program is to select an image file through a JFileChooser dialog, load the selected image and display it within the JPanel.

String Sorting in Java

String Sorting in Java

In this article, we explore different sorting techniques applied to strings in Java. We will look into the implementation of the direct insertion sorting algorithm and more advanced techniques such as the Merge Sort and Quick Sort algorithms. Each approach offers unique advantages by providing Java developers with flexibility in choosing the most suitable method based on the specific requirements of their applications.

Simple Mouse Tracker GUI using Java Swing

Simple Mouse Tracker GUI using Java Swing

This Java source code defines a simple mouse tracking program using Swing which is a graphical user interface toolkit. The program displays a window with a drawing surface that captures and visualizes various mouse events. The mouse’s current coordinates, modifier keys (Shift, Control, Meta, and Alt), and the type of the most recent mouse event are displayed in real-time on the window.

Interactive Java Stopwatch Component

Interactive Java Stopwatch Component

The StopWatch class introduces a versatile stopwatch component with enhanced functionality in Java. Extending JLabel and implementing the MouseListener interface, this interactive component not only measures elapsed time but also dynamically updates to display the current time in the format “Hours:Minutes:Seconds:Milliseconds”.

Find Words Frequency in a Text File using Java

Find Words Frequency in a Text File using Java

The program demonstrates sorting techniques by sorting a list of words based on their frequency count. Novice programmers can learn about basic file handling, data structures, generics, and sorting algorithms through this program, gaining foundational knowledge applicable to a wide range of Java applications.

Towers of Hanoi Java Program

Towers of Hanoi Java Program

This Java Program solves the Towers of Hanoi problem for a tower of 10 disks. Ten differently-sized disks are stacked in a pile, in order of decreasing size. There are two other places for piles. The object is to move the pile to the second available place, subject to the rules that only one disk at a time can be moved, and no disk can be piled on top of a smaller disk. The Towers of Hanoi problem is a standard example of recursion.

Java Swing GUI

Java Swing GUI Example Program

This Java source code is an example of a Graphical User Interface (GUI) with different GUI elements such as TextBox, Buttons, TextArea, Text Area and Labels. It is implemented using Java Swing API which provides a set of “lightweight” (all-Java language) components. This code example extends the functionality of JFrame class to show a JFrame window and Implements ActionListener on buttons to catch the click event on those buttons.

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