Examples of java.io.ObjectOutputStream.writeObject()

java.io.ObjectOutputStream.writeObject()
Write object object into the receiver's underlying stream. @param object The object to write @throws IOException If an IO exception happened when writing the object @see ObjectInputStream#readObject()

    }
    
    ObjectOutputStream oos = null;
    try {
      oos = new ObjectOutputStream(new FileOutputStream(attachmentsStore));
      oos.writeObject(attachment);
    } finally {
      if (oos != null) {
        oos.close();
      }
    }

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      int returnVal = m_FileChooser.showSaveDialog(this);
      if (returnVal == JFileChooser.APPROVE_OPTION) {
  File sFile = m_FileChooser.getSelectedFile();
  try {
    ObjectOutputStream oo = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream(sFile)));
    oo.writeObject(object);
    oo.close();
  } catch (Exception ex) {
    JOptionPane.showMessageDialog(this,
          "Couldn't write to file: "
          + sFile.getName()

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      if (!(objectOutputFileName.endsWith(".xml") || (objectOutputFileName.endsWith(".koml") && KOML.isPresent()))) {
        if (objectOutputFileName.endsWith(".gz")) {
          os = new GZIPOutputStream(os);
        }
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
        objectOutputStream.writeObject(classifier);
        if (template != null) {
          objectOutputStream.writeObject(template);
        }
        objectOutputStream.flush();
        objectOutputStream.close();

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          os = new GZIPOutputStream(os);
        }
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
        objectOutputStream.writeObject(classifier);
        if (template != null) {
          objectOutputStream.writeObject(template);
        }
        objectOutputStream.flush();
        objectOutputStream.close();
      }
      // KOML/XML

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        tempFile = File.createTempFile("arffviewer", null);
        tempFile.deleteOnExit();
        
        // serialize instances
        oos = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream(tempFile)));
        oos.writeObject(getInstances());
        oos.flush();
        oos.close();
        
        // add to undo list
        m_UndoList.add(tempFile);

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      ObjectOutputStream oos = 
  new ObjectOutputStream(
  new BufferedOutputStream(
  new FileOutputStream(tempFile)));
    
      oos.writeObject(m_Instances);
      oos.flush();
      oos.close();


      // update undo file list
      if (m_tempUndoFiles[m_tempUndoIndex] != null) {

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  OutputStream os = new FileOutputStream(sFile);
  if (sFile.getName().endsWith(".gz")) {
    os = new GZIPOutputStream(os);
  }
  ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
  objectOutputStream.writeObject(clusterer);
  if (trainHeader != null) objectOutputStream.writeObject(trainHeader);
  if (ignoredAtts != null) objectOutputStream.writeObject(ignoredAtts);
  objectOutputStream.flush();
  objectOutputStream.close();
      } catch (Exception e) {

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  if (sFile.getName().endsWith(".gz")) {
    os = new GZIPOutputStream(os);
  }
  ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
  objectOutputStream.writeObject(clusterer);
  if (trainHeader != null) objectOutputStream.writeObject(trainHeader);
  if (ignoredAtts != null) objectOutputStream.writeObject(ignoredAtts);
  objectOutputStream.flush();
  objectOutputStream.close();
      } catch (Exception e) {

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    os = new GZIPOutputStream(os);
  }
  ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
  objectOutputStream.writeObject(clusterer);
  if (trainHeader != null) objectOutputStream.writeObject(trainHeader);
  if (ignoredAtts != null) objectOutputStream.writeObject(ignoredAtts);
  objectOutputStream.flush();
  objectOutputStream.close();
      } catch (Exception e) {
  
  JOptionPane.showMessageDialog(null, e, "Save Failed",

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    }
    
    // sizes
    ByteArrayOutputStream bastream = new ByteArrayOutputStream();
    ObjectOutputStream oostream = new ObjectOutputStream(bastream);
    oostream.writeObject(m_Classifier);
    result[current++] = new Double(bastream.size());
    bastream = new ByteArrayOutputStream();
    oostream = new ObjectOutputStream(bastream);
    oostream.writeObject(train);
    result[current++] = new Double(bastream.size());

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