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Java

Receive a Single Byte from a Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveByte, which reads exactly one byte and stores its numeric value in the ReceivedInt property. The argument selects signed or unsigned interpretation.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

Chilkat Java Downloads

Java
import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkSocket socket = new CkSocket();

    //  Connect to the server using TLS.
    boolean bTls = true;
    int maxWaitMs = 5000;
    success = socket.Connect("example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    //  Read exactly one byte.  Its numeric value is stored in the ReceivedInt property.  Passing true
    //  interprets the byte as unsigned (0 through 255); false interprets it as signed.
    boolean bUnsigned = true;
    success = socket.ReceiveByte(bUnsigned);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    System.out.println("Received byte value: " + socket.get_ReceivedInt());
  }
}