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  • Java Speech recognition api

    - by jaymin
    HI, i am currently developing an android application where i am required to implement speech recognition...could u suggest a link where i could find a java speech recognition API...? Thanks

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  • LinkedList parameters in Java

    - by Walt
    Hi there, I created a program that contains linked lists that are passed various methods. While this works just fine in Java... a style checker program we have to use doesn't like it It says: Declaring variables, return values or parameters of type 'LinkedList' is not allowed. If I declare them as simply List then I don't have access to the methods I want. What should I do?

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  • Creating and writing file from a FileOutputStream in Java

    - by Althane
    Okay, so I'm working on a project where I use a Java program to initiate a socket connection between two classes (a FileSender and FileReceiver). My basic idea was that the FileSender would look like this: try { writer = new DataOutputStream(connect.getOutputStream()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } //While we have bytes to send while(filein.available() >0){ //We write them out to our buffer writer.write(filein.read(outBuffer)); writer.flush(); } //Then close our filein filein.close(); //And then our socket; connect.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); The constructor contains code that checks to see if the file exists, and that the socket is connected, and so on. Inside my FileReader is this though: input = recvSocket.accept(); BufferedReader br = new BufferedReader(new InputStreamReader(input.getInputStream())); FileOutputStream fOut= new FileOutputStream(filename); String line = br.readLine(); while(line != null){ fOut.write(line.getBytes()); fOut.flush(); line = br.readLine(); } System.out.println("Before RECV close statements"); fOut.close(); input.close(); recvSocket.close(); System.out.println("After RECV clsoe statements"); All inside a try-catch block. So, what I'm trying to do is have the FileSender reading in the file, converting to bytes, sending and flushing it out. FileReceiver, then reads in the bytes, writes to the fileOut, flushes, and continues waiting for more. I make sure to close all the things that I open, so... here comes the weird part. When I try and open the created text file in Eclipse, it tells me "An SWT error has occured ... recommended to exit the workbench... see .log for more details.". Another window pops up saying "Unhandled event loop exception, (no more handles)". However, if I try to open the sent text file in notepad2, I get ThisIsASentTextfile Which is good (well, minus the fact that there should be line breaks, but I'm working on that...). Does anyone know why this is happening? And while we're checking, how to add the line breaks? (And is this a particularly bad way to transfer files over java without getting some other libraries?)

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  • Securing username/password embedded in Java Desktop App

    - by William
    My Java desktop application includes a component for communicating with a web service. We therefore need to include the access details for it within the application, but do not want it to be easily accessible in the event that the code is decompiled (we will be obfuscating). What techniques can we use to secure these details?

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  • Simplest way to print an array in Java

    - by Alex Spurling
    What's the simplest way of printing an array of primitives or of objects in Java? Here are some example inputs and outputs: int[] intArray = new int[] {1, 2, 3, 4, 5}; //output: [1, 2, 3, 4, 5] String[] strArray = new String[] {"John", "Mary", "Bob"}; //output: [John, Mary, Bob]

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  • Why is System.arraycopy native in Java?

    - by James B
    I was surprised to see in the Java source that System.arraycopy is a native method. Of course the reason is because it's faster. But what native tricks is the code able to employ that make it faster? Why not just loop over the original array and copy each pointer to the new array - surely this isn't that slow and cumbersome? Thanks, -James

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  • Java OCR package

    - by pstanton
    what is the best OCR package you've used with java? I need to parse mainly numbers in a single font and am looking for a well architected, lite weight library to use. thanks.

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  • how to add to dates in java??

    - by terrific
    I want to add days in a date to get a new date in java. How to achieve it using the Calender class. Gregorian calender. Calender dom = new GregorianCalender(d, m y); is the instance of my date of manufacture and I want to reach to Date of Expiry adding some 100 days to the current date and store it in doe but unable to do that. Any help would be appreciable.

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  • Java marshaller performance

    - by cbz
    Hi, I've used JAXB Marshaller as well as my own marshaller for marshalling pure java bean objects into XML. It has been observed that both of them require almost same time to marshal. The performance is not acceptable and needs to be improved. What are possible ways where we can improve performance of marshaller? Like threading?

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  • Java Operator Precedence Comparison

    - by Andrew
    Does java have a built-in method to compare precedence of two operators? For example, if I have a char '/' and a char '+' is there a method I can call that compares the two and returns true/false if the first is greater than the second (e.g. true)?

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  • Java Folder Location for Image NetBeans 6.8

    - by ikurtz
    greetings, today i have started to learn java using netbeans ide. i would like my jframe to display an icon as stated in the following: setIconImage(Toolkit.getDefaultToolkit().getImage("SartreIcon.jpg")); the questin is under netbeans ide.. exactly in which folder do i place the graphic in question in order to load it? thanks.

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  • Invoking powershell from Java

    - by Hannes de Jager
    Anyone know of a good library to invoke powershell scripts from within Java? I'm currently spawning a seperate process (powershell.exe) and then parse the output, but it would really be nice if I can leverage Powershell's 'power' by getting objects back from a powershell call. Edit: Otherwise, anyone else doing such interop? What method do you use?

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  • How to receive/send files with a java Webservice

    - by Moons
    Hi! So i'm writing a WebService in Java that should receive a file as an input, and then the WebService does some processing on that file, and finally it should send a new file to the client. My question is : How do I send a file to the client? (and how can I tell them to upload one). Thanks for the help

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  • How to retry opening a properties file in Java

    - by Hoggy
    I'm trying to handle an FileNotFoundException in Java by suspending the thread for x seconds and rereading the file. The idea behind this is to edit properties during runtime. The problem is that the programm simply terminates. Any idea how to realize this solution?

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  • login form with java/sqlite

    - by tuxou
    hi I would like to create a login form for my application with the possibility to add or remove users for an sqlite database, i have created the table users(nam, pass) but i can't unclud it in my login form, it someone could help me this is my login code: import java.awt.*; import java.awt.event.*; import javax.swing.*; public class login extends JFrame{ // Variables declaration private JLabel jLabel1; private JLabel jLabel2; private JTextField jTextField1; private JPasswordField jPasswordField1; private JButton jButton1; private JPanel contentPane; // End of variables declaration public login(){ super(); create(); this.setVisible(true); } private void create(){ jLabel1 = new JLabel(); jLabel2 = new JLabel(); jTextField1 = new JTextField(); jPasswordField1 = new JPasswordField(); jButton1 = new JButton(); contentPane = (JPanel)this.getContentPane(); // // jLabel1 // jLabel1.setHorizontalAlignment(SwingConstants.LEFT); jLabel1.setForeground(new Color(0, 0, 255)); jLabel1.setText("username:"); // // jLabel2 // jLabel2.setHorizontalAlignment(SwingConstants.LEFT); jLabel2.setForeground(new Color(0, 0, 255)); jLabel2.setText("password:"); // // jTextField1 // jTextField1.setForeground(new Color(0, 0, 255)); jTextField1.setSelectedTextColor(new Color(0, 0, 255)); jTextField1.setToolTipText("Enter your username"); jTextField1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ jTextField1_actionPerformed(e); } }); // // jPasswordField1 // jPasswordField1.setForeground(new Color(0, 0, 255)); jPasswordField1.setToolTipText("Enter your password"); jPasswordField1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ jPasswordField1_actionPerformed(e); } }); // // jButton1 // jButton1.setBackground(new Color(204, 204, 204)); jButton1.setForeground(new Color(0, 0, 255)); jButton1.setText("Login"); jButton1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ jButton1_actionPerformed(e); } }); // // contentPane // contentPane.setLayout(null); contentPane.setBorder(BorderFactory.createEtchedBorder()); contentPane.setBackground(new Color(204, 204, 204)); addComponent(contentPane, jLabel1, 5,10,106,18); addComponent(contentPane, jLabel2, 5,47,97,18); addComponent(contentPane, jTextField1, 110,10,183,22); addComponent(contentPane, jPasswordField1, 110,45,183,22); addComponent(contentPane, jButton1, 150,75,83,28); // // login // this.setTitle("Login To Members Area"); this.setLocation(new Point(76, 182)); this.setSize(new Dimension(335, 141)); this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); this.setResizable(false); } /** Add Component Without a Layout Manager (Absolute Positioning) */ private void addComponent(Container container,Component c,int x,int y,int width,int height){ c.setBounds(x,y,width,height); container.add(c); } private void jTextField1_actionPerformed(ActionEvent e){ } private void jPasswordField1_actionPerformed(ActionEvent e){ } private void jButton1_actionPerformed(ActionEvent e){ System.out.println("\njButton1_actionPerformed(ActionEvent e) called."); String username = new String(jTextField1.getText()); String password = new String(jPasswordField1.getText()); if(username.equals("") || password.equals("")){// If password and username is empty > Do this >>> jButton1.setEnabled(false); JLabel errorFields = new JLabel("<HTML><FONT COLOR = Blue>You must enter a username and password to login.</FONT></HTML>"); JOptionPane.showMessageDialog(null,errorFields); jTextField1.setText(""); jPasswordField1.setText(""); jButton1.setEnabled(true); this.setVisible(true); } else{ JLabel optionLabel = new JLabel("<HTML><FONT COLOR = Blue>You entered</FONT><FONT COLOR = RED> <B>"+username+"</B></FONT> <FONT COLOR = Blue>as your username.<BR> Is this correct?</FONT></HTML>"); int confirm =JOptionPane.showConfirmDialog(null,optionLabel); switch(confirm){ // Switch > Case case JOptionPane.YES_OPTION: // Attempt to Login user jButton1.setEnabled(false); // Set button enable to false to prevent 2 login attempts break; case JOptionPane.NO_OPTION: // No Case.(Go back. Set text to 0) jButton1.setEnabled(false); jTextField1.setText(""); jPasswordField1.setText(""); jButton1.setEnabled(true); break; case JOptionPane.CANCEL_OPTION: // Cancel Case.(Go back. Set text to 0) jButton1.setEnabled(false); jTextField1.setText(""); jPasswordField1.setText(""); jButton1.setEnabled(true); break; } // End Switch > Case } } public static void main(String[] args){ JFrame.setDefaultLookAndFeelDecorated(true); JDialog.setDefaultLookAndFeelDecorated(true); try{ UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); }catch (Exception ex){ System.out.println("Failed loading L&F: "); System.out.println(ex); } new login(); }; } my connectDb class : public class Connectdb { private static Connection connect; private static String url ="jdbc:sqlite:data.db"; private static Statement st; private static ResultSet rs; /** * Constructeur privé d'une connection à la bd unique */ private ConnectionBd(){ try { Class.forName("org.sqlite.JDBC"); connect = DriverManager.getConnection(url); } catch (ClassNotFoundException ex) { Logger.getLogger(ex.getName()).log(Level.SEVERE, null, ex); } catch (SQLException e) { System.exit(e.getErrorCode()); } } public static Connection getInstance(){ if(connect == null){ new Connectdb(); }else{ } return connect; } /** * @return */ public static void initTable(String query){ try { Statement state = getInstance().createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY); ResultSet res = state.executeQuery(query); res.close(); state.close(); } catch (SQLException e) { JOptionPane.showMessageDialog(null, e.getMessage(), "ERROR ! ", JOptionPane.ERROR_MESSAGE); } }

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