Strcture data communication between java and c socket programming

// I have a java socket channel and i'm sending a object data and receiving it in c socket ..

Java Code::

//structure class data { public String jobtype; public String budget; public String time ; } //creating a Socket Channel and sending data through it in java

        Selector incomingMessageSelector = Selector.open();
        SocketChannel  sChannel = SocketChannel.open();           
        sChannel.configureBlocking(false);
        sChannel.connect(new InetSocketAddress("localhost", 5000));
        sChannel.register(incomingMessageSelector, SelectionKey.OP_CONNECT);

   if(sChannel.finishConnect()==true)
     {
         sChannel.register(incomingMessageSelector, SelectionKey.OP_WRITE);

      }
    int len = 256;
    ByteBuffer buf = ByteBuffer.allocate(len);
    buf.putInt(len); 
    // Writing object of data in socket
    buf.put(obj.jobtype.getBytes("US-ASCII"));
    buf.put(obj.budget.getBytes("US-ASCII"));
    buf.put(obj.time.getBytes("US-ASCII"));
    buf.put((byte) 0);
    buf.flip();
    sChannel.write(buf);



C Code ::

struct data
{
char time[50];
char jobtype[50];
char budget[50];
};

n = read(newsockfd, &size, sizeof(size));
  struct data *result = malloc(size);
  n = read(newsockfd, result, size);

     printf("\njobtype :: %s\nbudget :: %s\ntime :: %s\n",result->jobtype,result->budget,result->time);


// after giving input as jobtype = h1 budget = 20 and time = 12  in java.

/* i'm getting these output in C jobtype :: budget :: time :: h1

*/