Wanted to pack values in java like struct.pack() in python

[Muthu Kumaran Murugesan]

Hi,

I wanted to pack some values and later i have to unpack it ..
in python struct.pack() method is used to pack and unpack the values in the same way is there any way to pack values in java ,...??
If any suggestions kindly advice me

[Rob Spoor]

If I read it correctly, pack() turns the tuple into bytes and unpack() turns such bytes back into a tuple. Is this true?

If so, check out how serialization works. You can then write entire objects into any output stream using an ObjectOutputStream. To convert an object into bytes and back you can use the following:

ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(object);
oos.flush();
oos.close();
byte[] bytes = baos.toByteArray();

// converting back
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bais);
MyObject object2 = (MyObject)ois.readObject();