Converting Java Code to C# RSS

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  garrywh

  Member

  7 Points

  36 Posts

  Converting Java Code to C#

  Nov 21, 2010 06:45 PM|LINK

  I have about 60 lines of Java code I need to convert to C#. This code creates a UDP packet and sends it to a destination IP address on port 1761. I'm not sure what the equivalent C# code is to manipulate the java byte data type and not sure what the Datagram equivalent is.

  This is the Java code I need to translate to C#

  private void jBtnReadActionPerformed(ActionEvent e)
  	{
  		byte buf[] = new byte[512];
  		int i = 0;
  
  
  		//1. Check the Buttons to verify that only UDP-API command button is selected
  		if (true == jRBtnUdpCmd.isSelected())
  		{
  			Integer i1 = Integer.valueOf(jTxtCmdId.getText());
  			int tmp = i1.intValue();
  			buf[i++] = (byte)((tmp >> 8) & 0xFF);
  			buf[i++] = (byte)(tmp & 0xFF);
  
  
  			// set Byte 2:0x00 (read request) and byte three: 0x00 (reserved)
  			buf[i++] = READ_REQUEST; // READ_REQUEST is set to 0x00
  			buf[i++] = 1; // This byte is reserved.
  // buf[i++] = RESERVED; // This byte is reserved.
  
  
  			// convert the space delimited ASCII hex data to byte value
  			String strData = jTxtCmdData.getText();
  			int strDataLen = strData.length();
  
  
  //System.out.println("String: " + strData + "    Len: " + strDataLen);
  
  
  			byte[] newBuf = new byte[strDataLen];
  			int len = convertAsciiHexToByte(strData, strDataLen, newBuf);
  
  
  			// insert 4 bytes of header and copy the remaining bytes here.
  			for (i=4; i < 4+len; i++)
  			{
  				buf[i] = newBuf[i - 4];
  			}
  
  
  			// Send the IP Data
  			sendIpData(buf, i);
  		}
  	}
  	
  
  	private void sendIpData ( byte bData[], int dataLen )
  	{
  		if (dataLen > 0)
  		{
  			// Display data to send
  			DisplayOutData(bData, dataLen);
  
  
  			// Build packet with destination Ip address, source & destination
  			// port numbers
  			DatagramPacket packet = new DatagramPacket(bData, dataLen, inetAddr, iPortNum);
  
  
  			try
  			{
  				dataSocket.send(packet);
  			}
  			catch (IOException ioe)
  			{
  				System.err.println(ioe);
  			}
  		}
  	}

  What is the C# equivalent of this code?

  buf[i++] = (byte)((tmp >> 8) & 0xFF);
  buf[i++] = (byte)(tmp & 0xFF);
  
   (Shifting bits and ANDING the operation...)

  This is the code I think I need in place of the Java Datagram UDP send packet code

  Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, 
  ProtocolType.Udp); 
   
  IPAddress serverAddr = IPAddress.Parse("192.168.2.255"); 
   
  IPEndPoint endPoint = new IPEndPoint(serverAddr, 11000); 
   
  string text = "Hello"; 
  byte[] send_buffer = Encoding.ASCII.GetBytes(text ); 
   
  sock.SendTo(send_buffer , endPoint); 
  

  Any help would be appreciated to point me in thre right direction.

  Thank you,

  Garry

  • Moved by ignatandrei on Nov 21, 2010 07:36 PM
• • Reply
  

  SMAS-SMAS

  Contributor

  2637 Points

  638 Posts

  Re: Converting Java Code to C#

  Nov 22, 2010 05:25 AM|LINK

  Microsoft provide something for conversion process. I never use this so I have no idea, but you can test this !

  http://www.microsoft.com/downloads/en/details.aspx?FamilyID=46bea47e-d47f-4349-9b4f-904b0a973174&displaylang=en

  • Marked as answer by Vince Xu - MSFT on Nov 30, 2010 03:45 AM