Conversion To convert a String into a java.util.Date of a specific format, you can use a java.text.DateFormat. DateFormat objects can perform conversions in both directions, from String to Date by calling format() and from Date to String by calling parse(). DateFormat objects can be obtained in multiple ways, here are some: Obtain an instance via … Read more
Yes you can. Unfortunately Java is not well suited for this task (for various reasons). I would suggest you buy an arduino set and learn what it can do regarding controlling devices and receiving input from sensors, so you know more about what is possible. 2 solved Java Programming real objects [closed]
Based on the JavaDoc – jEditorPane supports the bleeding edge HTML 3.2 and CSS1 so the short answer is, you really don’t want to try rendering modern web pages with it. However, you may be able to do this: import javax.swing.text.html.HTMLEditorKit; import javax.swing.text.html.StyleSheet; HTMLEditorKit kit = new HTMLEditorKit(); jEditorPane.setEditorKit(kit); URL url = new URL(location of … Read more
You must create a comparator: Comparator<String> comparator = new Comparator<String>() { public int compare(String s1, String s2) { return s1.compareTo(s2); } }; With this comparator you will be able to sort your data in alphabetical order. After that create sorter and pass this comparator and model of your JTable. Then: sorter.sort(); I think after that … Read more
This can be used to loop over the array and print “yes ” or “no ” : boolean[] newbirds = {false, true, true}; StringBuilder sb = new StringBuilder(); for(boolean bird : newbirds){ sb.append(bird? “yes ” : “no “); } System.out.println(sb.toString()); solved java -change boolean to yes no
You are adding the action listeners to buttons you don’t add to the frame (the ones you do add are new instances, and don’t have the action listeners) Try: content.add(Ele); content.add(exitButton); in AddPet 1 solved Java ActionListener not responding
Not sure it will help but you can try changing some of the Graphics properties. For example: g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); 0 solved Low Quality Rendering Rotating Images
To solve the problem declare the textfield as static: //JTextField Declaration and Initialization static JTextField NODES_TEXT_FIELD = new JTextField(); After that catch the value of the TextField: int nodes = Integer.valueOf(NODES_TEXT_FIELD.getText()); In my case was an int value, switch yourself; After that clear the value of the textfield cos it will be stored since the … Read more
This is caused by the basic fact that you have broken the paint chain. Painting in AWT/Swing is made of a chain of method calls. If you neglect to maintain this chain, you start ending up with paint artifacts, in the form you are seeing. The Graphics context is a shared resource, that is, every … Read more
You should create a model class for your records: Model Class class Record { private String item; private String category; private int quantity; private String timestamp // constructor public Record (String item, String category, int quantity, String timestamp) { this.item = item; // assign rest of members… } public String getCategory () { return category; … Read more
Try this one or just use google with “java swing tutorial” or “java awt tutorial”: http://zetcode.com/tutorials/javaswingtutorial/firstprograms/ 5 solved Print text and image on the paper in java
They say a picture paints a thousand words, so here’s a 6K word answer. Note that in Nimbus & Motif PLAFs, the background of the non-editable text field appears same as the editable text field, while in three others, it looks different. The disabled text field appears different to either the editable or non-editable fields … Read more
As long as Constructor remains commented out, not showing anything is correct behaviour. public static void main(String[] args) { startScreen a = new startScreen(); } Try it this way (and edit your post to include source) As MadProgrammer mentioned – you need to make the Frame visible to make all the Components within visible: // … Read more
Using Webcam Capture project. Example from author for the API usage: Webcam buildin = Webcam.getWebcams().get(0); // build-in laptop camera Webcam usb = Webcam.getWebcams().get(1); // usb camera BufferedImage image1 = buildin.getImage(); BufferedImage image2 = usb.getImage(); // do with image1 and image2 whatever you want 11 solved Using the camera of the laptop with swing in java … Read more
Use a JFXPanel. From the documentation => public class Test { private static void initAndShowGUI() { // This method is invoked on Swing thread JFrame frame = new JFrame(“FX”); final JFXPanel fxPanel = new JFXPanel(); frame.add(fxPanel); frame.setVisible(true); Platform.runLater(new Runnable() { @Override public void run() { initFX(fxPanel); } }); } private static void initFX(JFXPanel fxPanel) { … Read more