Tagged Questions

Swing is the name for the GUI toolkit that is packaged with the standard Java SDK. (since 1.2)

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1
vote
0answers
10 views

Initiliasations for applet

I have the following code in my class and its init() method. It works fine as it is but I'm wondering if there's a better way to do this so that my init() and ...
3
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1answer
35 views

Swing application: Working with GridBagLayout and Mediator pattern

SCENARIO: As a follow-up of this question on Stackoverflow asked few days back, I am working on a swing application(article tagging tool) where the user(on an initial jpanel) would fill up some ...
3
votes
1answer
59 views

MySQL Java in JTable

This is an assignment posted here. (Part-B) The aim here is to create a GUI in which the user can search for and insert data into a particular table of a MySQL database. Is this an appropriate ...
12
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5answers
1k views

Small password generator app with GUI

This is a GUI-based random password generator, which supports internationalization. It consists of 6 small classes: Main classes: Application - entry point ...
2
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2answers
105 views

Using database connection and GUI

In my project there are a lot of GUI so I have a class for each GUI. I created a class to connect to my db (MySQL). Remember, I don't have problems with code not working. The code (important to this ...
4
votes
1answer
72 views

Simple Cellular Automata (think Conway's Game of Life) simulator

Firstly, let me say that this code works, as posted. It fills a 10x10 grid with a random color (black/white) then runs a cellular automata simulation on the grid, starting or pausing when the button ...
6
votes
1answer
112 views

Pokemon Type Evaluator part 2

I started anew and completely refactored the way I implemented Pokemon Type Evaluator. Also, first use of a lambda expression (Case of using it, but still don't fully grasp how it's working). I'm ...
7
votes
3answers
865 views

Simple FizzBuzz

I wanted to try FizzBuzz, but to do it in the most efficient way. I think this method employs most of the concepts I learned here. Is there anything unaccounted for? A sprinkle of Swing since that's ...
6
votes
2answers
78 views

Reorganize a maze game from one large class into smaller classes

I'm new to Java and I really don't understand how to make more classes work like one. So if anybody could explain and help me divide my large code into smaller classes (like Player.java, Main.java, ...
10
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7answers
778 views

Too-high / too-low guessing game in Swing

I have created this program and it works fine. It's just that its too wonky and huge so I was wondering if anyone knew how I could shorten the program so I didn't have to put all of these into each ...
5
votes
1answer
60 views

Determine maximum window bounds

Preamble: the default frame positioning with Swing JFrames has always bothered me. Eventually I wrote some code to calculate my available desktop space, not ...
10
votes
3answers
1k views

Pokemon Type Evaluator

I thought I would apply what I learned to make something fun. Its purpose is to type check Pokemon, for anyone familiar with the series. It mostly works but I have two concerns: Sometimes you write ...
4
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1answer
76 views

Pausing a SwingWorker with a Timer

I made a SwingWorker which is fetching tweets using the twitter4j API. The twitter API will allow 180 queries every 15 minutes, and then throw an exception with ...
2
votes
1answer
114 views

Opening contents of a file using Swing and SwingWorker class

I want to open a file contents using swing. For this I used the SwingWorker class. This application took more time (more than a minute) to load a large file ...
3
votes
1answer
42 views

Creating a “Produce and Consume” using Swingworkers

I am experimenting with the produce and consume concept while trying to incorporate it into my own project. I basically have two Workers in a small example I made: ...
1
vote
1answer
93 views

Breaking memory game code into MVC form

I am currently coding a memory game whereby upon the game starts with 14 cards displayed faced down. The player will start by clicking on 2 cards. The cards will be revealed. If both of the card ...
5
votes
1answer
62 views

Periodically checking for internet connection

I have a SwingWorker which checks periodically for an internet connection and updates a jLabel accordingly. ...
7
votes
3answers
224 views

Very Basic Java Piano

I've been reading "Head First Java" and some of the early projects surround basic swing and basic MIDI. So I've put the two together and written a basic "Synthesiser"/"Piano" using what I have ...
3
votes
1answer
71 views

Implementation of MVC pattern with paintComponent method

Could someone review my code, with respect to OOP, clean code and MVC pattern? Main app: ...
8
votes
1answer
104 views

Separating Logic from GUI

I am new to Java's Swing and built a test client that connects to a server. I was wondering if my use of a Controller class as a link between the classes ...
4
votes
1answer
102 views

Inefficient Stopwatch - revised

This is my revised code of Stopwatch: ...
5
votes
1answer
129 views

Inefficient Stopwatch

I have just finished a simple GUI stopwatch, but some of its code looks like it needs replacing. This is the code: Clock class (extends Thread): ...
2
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1answer
171 views

Simple Operations Calculator

I'm practicing Swing effects. Everything works but for some reason I get a ton of error messages in the command prompt when the fields are empty, despite my attempt to add some exception handling ...
6
votes
2answers
561 views

Basic Calculator using Java Swing and AWT

I created a basic desktop calculator using Java. Does anyone have any suggestions as far as coding best practices, readability issues, or just generic coding mistakes I might have missed? Any ...
6
votes
1answer
66 views

Rotating background using Swing: performance issues

In a jPanel, I'm displaying a 1203x1203 background that I rotate every 30ms. Problem is, Swing is known to be a slow library, and I assume rotating a huge picture at a quick rate would be quite ...
8
votes
2answers
952 views

Swing calculator - first GUI program

I've recently made a calculator using Java and Swing. I'm okay with the results but I'm curious what are the major flaws I've made (assuming there are, because it is my first program making GUI). I ...
5
votes
3answers
381 views

Small notepad editor

I decided on making a small notepad editor in Java using Swing and I think it functions pretty well. Unfortunately, my skills in making my project tidy and organized has abandoned me; it looks like ...
0
votes
2answers
96 views

Simple GUI using tabs to separate application windows

I'm designing a simple GUI using tabs to separate each 'window' of the application. There are 3 main tabs, each with 2 sub-tabs. In one class I create the entire hierarchy of panes and panels: ...
5
votes
1answer
770 views

MouseListener Lag in Piano Tiles game

I was attempting to write my own simple version of the Piano Tiles game app in Java just as a fun exercise. GameLogic.java ...
10
votes
1answer
229 views

Organizing code in small Mario game

I have a little Mario game I started working on realize that it's format is very messy, can anyone critique my code on how to make it better, faster, neater, easier to access. frame.java ...
7
votes
3answers
735 views

2048 game clone in Java

I made a 2048 game clone in Java for training, and I am trying to make it more efficient. The problem I found is the paintComponent() method always resets all the ...
6
votes
1answer
202 views

Simple stop watch

I'd like my code to be solid and good. That's why I want someone a little more experienced to give me some feedback so I can improve. Here is the code for a simple stop watch that I created. I feel ...
1
vote
1answer
137 views

MVC Layout - Which way to add listeners is better?

So I'm doing a basic MVC layout for a pretty basic game that I am making. The game requires the user to move up/down/left/right via buttons on the GUI. Since I'm using an MVC layout and my buttons are ...
4
votes
1answer
171 views

Winning Loop Connect 4

I am writing a fully functional single player Connect 4 game. I am working on the second player and the while loop that tells the player who won. GUI ...
7
votes
1answer
111 views

Interacting with GUI class and Main class

Usually when I make mock-up programs (like this one), I look for things I can improve on in case the situation happens again. Today I thought I'd brush up on basic OOP (I understand the concept of ...
6
votes
4answers
1k views

“Guess my number” game in Java Swing

Also posted at rgcsm.info/blog ...
4
votes
2answers
80 views

Executing a file through a swing button

I am making a Swing application for light local database management and I have the button Run XAMPP. When that button is pressed this code is executed: ...
9
votes
1answer
81 views

PanelScrollable - a reusable class for rendering a changeable number of panels

This class (PanelScrollable) is part of my view package, in an MVP designed Java Swing system. I am not using any MVP ...
10
votes
1answer
7k views

Basic Calculator in Java with Swing

I used a standard calculator design from Java. I wanted to expand it so I created a class to create buttons for different operations, like +, ...
4
votes
2answers
69 views

Did I properly encapsulate this package?

My goal is to make File_Path_Handler constructor the only thing a user can access. Oh, is it too coupled? but the main question is: is File_Path_Handler the only accessible part of this package? ...
4
votes
2answers
123 views

How many squares can you see?

With a positive outlook, I posted this challenge at Programming Puzzles & Code Golf. I tried to come up with my own solution to the challenge which is as follows: The output is displayed (not ...
4
votes
1answer
271 views

Correctly implementing the Swing TreeModel

Ideally the Code Review would target the correctness of the approach implementing the Swing TreeModel. In particular, is the structural separation[1], event message passing, threading[2], object ...
10
votes
2answers
85 views

Component-oriented implementation of JList

One of the main problems I have with JList is that no component is actually added to it. This means that things like ...
6
votes
3answers
106 views

Reducing repetition and utlizing EDT

I am working on the largest Java program I have undertaken to date and feel uncertain in my current code practices. I think that I state and repeat things that don't need to be which can become a ...
4
votes
2answers
102 views

Long Thread & EDT

I’m trying to make a simple gui app that starts a “long” process that can be started and stopped. The process generates random numbers and displays them in a JList. As numbers are being displayed ...
7
votes
1answer
165 views

Card layout in Java

I have a JPanel (mainPanel) with CardLayout which contains 4 JPanels (childPanel). Each childPanel contains: a JPopupMenu ...
7
votes
1answer
1k views

Drawing a triangle and some concentric circles

For class, I had to use Java to draw a triangle and some concentric circles. Here's my code (questions follow): ...
14
votes
1answer
151 views

Follow-up to tool for posting CodeReview questions

Description This is a follow-up question to Tool for creating CR questions. Things that has changed include: Removed replacing four spaces with one tab, all tabs and all spaces in the code itself ...
22
votes
2answers
291 views

Tool for creating CR questions

To download the tool and for usage instructions, see the follow up to this question Description I have realized that there's a whole bunch of code I want to have reviewed, but copying file by ...
7
votes
1answer
760 views

Java Calculator

I tried to make a calculator in Java and have added some stuff. I'm a beginner and have learned yesterday how to make buttons. ...