Example usage for java.io ObjectInputStream readByte

Introduction

In this page you can find the example usage for java.io ObjectInputStream readByte.

Prototype

public byte readByte() throws IOException 

Source Link

Document

Reads an 8 bit byte.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {

    byte b = 12;//from  w  ww.j a va  2s . c o  m

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    // write something in the file
    oout.writeByte(b);
    oout.writeByte(21);
    oout.flush();
    oout.close();
    // create an ObjectInputStream for the file we created before
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    // read and print a byte
    System.out.println((char) ois.readByte());

    // read and print a byte
    System.out.println((char) ois.readByte());
    ois.close();

}

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From source file:Main.java

public static void main(String[] args) throws Exception {

    String s = "Hello World!";
    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    oout.writeUTF(s);//  w  w w  .j av a2 s  .  c om
    oout.writeUTF("This is an example from java2s.com");
    oout.flush();
    oout.close();

    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    ois.skipBytes(4);
    for (int i = 0; i < ois.available() - 4; i++) {
        System.out.print((char) ois.readByte());
    }
    ois.close();
}

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From source file:jfs.sync.encryption.JFSEncryptedStream.java

public static byte readMarker(ObjectInputStream ois) throws IOException {
    byte marker = ois.readByte();
    if (log.isInfoEnabled()) {
        log.info("JFSEncryptedStream.readMarker() marker " + marker + " for ");
    } // if//from www.  j  a  v  a2  s  . c  o m
    return marker;
}

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From source file:ByteArrayList.java

private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    in.defaultReadObject();/*from   ww  w .j  a  v a  2s.com*/
    array = new byte[in.readInt()];
    for (int i = 0; i < size; i++) {
        array[i] = in.readByte();
    }
}

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From source file:idontwant2see.IDontWant2See.java

public void readData(final ObjectInputStream in) throws IOException, ClassNotFoundException {
    final int version = in.readInt(); // read Version

    int n = in.readInt();

    if (version <= 2) {
        for (int i = 0; i < n; i++) {
            final StringBuilder value = new StringBuilder("*");
            value.append(in.readUTF()).append("*");

            mSettings.getSearchList().add(new IDontWant2SeeListEntry(value.toString(), false));
        }/*ww  w .  j a v a 2s .  c o  m*/

        if (version == 2) {
            n = in.readInt();

            for (int i = 0; i < n; i++) {
                mSettings.getSearchList().add(new IDontWant2SeeListEntry(in.readUTF(), true));
            }

            mSettings.setSimpleMenu(false);
        }
    } else {
        for (int i = 0; i < n; i++) {
            mSettings.getSearchList().add(new IDontWant2SeeListEntry(in, version));
        }

        mSettings.setSimpleMenu(in.readBoolean());

        if (version >= 4) {
            mSettings.setSwitchToMyFilter(in.readBoolean());
        }
        if (version >= 5) {
            mSettings.setLastEnteredExclusionString(in.readUTF());
        }
        if (version >= 6) {
            mSettings.setLastUsedDate(Date.readData(in));
        }
        if (version >= 7) {
            mSettings.setProgramImportance(in.readByte());
        } else {
            mSettings.setProgramImportance(Program.DEFAULT_PROGRAM_IMPORTANCE);
        }
    }
}

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From source file:org.pentaho.reporting.engine.classic.core.Element.java

/**
 * A helper method that deserializes a object from the given stream.
 *
 * @param stream//from   w w w. j  a v  a  2  s. com
 *          the stream from which to read the object data.
 * @throws IOException
 *           if an IO error occured.
 * @throws ClassNotFoundException
 *           if an referenced class cannot be found.
 */
private void readObject(final ObjectInputStream stream) throws IOException, ClassNotFoundException {
    stream.defaultReadObject();
    this.attributes = new ReportAttributeMap<Object>(stream.readLong());
    final String[] nameSpaces = (String[]) stream.readObject();
    for (int i = 0; i < nameSpaces.length; i++) {
        final String nameSpace = nameSpaces[i];
        final String[] names = (String[]) stream.readObject();
        for (int j = 0; j < names.length; j++) {
            final String name = names[j];
            final int nullHandler = stream.readByte();
            if (nullHandler == 0) {
                final Object attribute = SerializerHelper.getInstance().readObject(stream);
                this.attributes.setAttribute(nameSpace, name, attribute);
            }
        }
    }
}

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From source file:org.pentaho.reporting.libraries.serializer.SerializerHelper.java

/**
 * Reads the object from the object input stream. This object selects the best serializer to read the object.
 * <p/>//from www.ja v a  2 s .com
 * Make sure, that you use the same configuration (library and class versions, registered methods in the
 * SerializerHelper) for reading as you used for writing.
 *
 * @param in the object input stream from where to read the serialized data.
 * @return the generated object.
 * @throws IOException            if reading the stream failed.
 * @throws ClassNotFoundException if serialized object class cannot be found.
 */
public synchronized Object readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException {
    final int type = in.readByte();
    if (type == 0) {
        return null;
    }
    if (type == 1) {
        return in.readObject();
    }
    final Class c = (Class) in.readObject();
    final SerializeMethod m = getSerializer(c);
    if (m == null) {
        throw new NotSerializableException(c.getName());
    }
    return m.readObject(in);
}

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