datagrampacket.html

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                      int offset,
                      int&nbsp;length)</PRE>
<DL>
<DD>Constructs a <code>DatagramPacket</code> for receiving packets of 
 length <code>length</code>, specifying an offset into the buffer.
 <p>
 The <code>length</code> argument must be less than or equal to 
 <code>buf.length</code>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - buffer for holding the incoming datagram.<DD><CODE>offset</CODE> - the offset for the buffer<DD><CODE>length</CODE> - the number of bytes to read.<DT><B>Since: </B><DD>JDK1.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="DatagramPacket(byte[], int)"><!-- --></A><H3>
DatagramPacket</H3>
<PRE>
public <B>DatagramPacket</B>(byte[]&nbsp;buf,
                      int&nbsp;length)</PRE>
<DL>
<DD>Constructs a <code>DatagramPacket</code> for receiving packets of 
 length <code>length</code>. 
 <p>
 The <code>length</code> argument must be less than or equal to 
 <code>buf.length</code>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - buffer for holding the incoming datagram.<DD><CODE>length</CODE> - the number of bytes to read.</DL>
</DD>
</DL>
<HR>

<A NAME="DatagramPacket(byte[], int, int, java.net.InetAddress, int)"><!-- --></A><H3>
DatagramPacket</H3>
<PRE>
public <B>DatagramPacket</B>(byte[]&nbsp;buf,
                      int&nbsp;offset,
                      int&nbsp;length,
                      <A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;address,
                      int&nbsp;port)</PRE>
<DL>
<DD>Constructs a datagram packet for sending packets of length
 <code>length</code> with offset <code>ioffset</code>to the
 specified port number on the specified host. The
 <code>length</code> argument must be less than or equal to
 <code>buf.length</code>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - the packet data.<DD><CODE>offset</CODE> - the packet data offset.<DD><CODE>length</CODE> - the packet data length.<DD><CODE>address</CODE> - the destination address.<DD><CODE>port</CODE> - the destination port number.<DT><B>Since: </B><DD>JDK1.2</DD>
<DT><B>See Also: </B><DD><A HREF="../../java/net/InetAddress.html"><CODE>InetAddress</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="DatagramPacket(byte[], int, java.net.InetAddress, int)"><!-- --></A><H3>
DatagramPacket</H3>
<PRE>
public <B>DatagramPacket</B>(byte[]&nbsp;buf,
                      int&nbsp;length,
                      <A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;address,
                      int&nbsp;port)</PRE>
<DL>
<DD>Constructs a datagram packet for sending packets of length 
 <code>length</code> to the specified port number on the specified 
 host. The <code>length</code> argument must be less than or equal 
 to <code>buf.length</code>.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - the packet data.<DD><CODE>length</CODE> - the packet length.<DD><CODE>address</CODE> - the destination address.<DD><CODE>port</CODE> - the destination port number.<DT><B>See Also: </B><DD><A HREF="../../java/net/InetAddress.html"><CODE>InetAddress</CODE></A></DL>
</DD>
</DL>

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<A NAME="getAddress()"><!-- --></A><H3>
getAddress</H3>
<PRE>
public <A HREF="../../java/net/InetAddress.html">InetAddress</A> <B>getAddress</B>()</PRE>
<DL>
<DD>Returns the IP address of the machine to which this datagram is being
 sent or from which the datagram was received.<DD><DL>
<DT><B>Returns:</B><DD>the IP address of the machine to which this datagram is being
          sent or from which the datagram was received.<DT><B>See Also: </B><DD><A HREF="../../java/net/InetAddress.html"><CODE>InetAddress</CODE></A>, 
<A HREF="../../java/net/DatagramPacket.html#setAddress(java.net.InetAddress)"><CODE>setAddress(java.net.InetAddress)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getPort()"><!-- --></A><H3>
getPort</H3>
<PRE>
public int <B>getPort</B>()</PRE>
<DL>
<DD>Returns the port number on the remote host to which this datagram is
 being sent or from which the datagram was received.<DD><DL>
<DT><B>Returns:</B><DD>the port number on the remote host to which this datagram is
          being sent or from which the datagram was received.<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#setPort(int)"><CODE>setPort(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getData()"><!-- --></A><H3>
getData</H3>
<PRE>
public byte[] <B>getData</B>()</PRE>
<DL>
<DD>Returns the data received or the data to be sent.<DD><DL>
<DT><B>Returns:</B><DD>the data received or the data to be sent.<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#setData(byte[], int, int)"><CODE>setData(byte[], int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getOffset()"><!-- --></A><H3>
getOffset</H3>
<PRE>
public int <B>getOffset</B>()</PRE>
<DL>
<DD>Returns the offset of the data to be sent or the offset of the
 data received.<DD><DL>
<DT><B>Returns:</B><DD>the offset of the data to be sent or the offset of the
          data received.<DT><B>Since: </B><DD>JDK1.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
<PRE>
public int <B>getLength</B>()</PRE>
<DL>
<DD>Returns the length of the data to be sent or the length of the
 data received.<DD><DL>
<DT><B>Returns:</B><DD>the length of the data to be sent or the length of the
          data received.<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#setLength(int)"><CODE>setLength(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setData(byte[], int, int)"><!-- --></A><H3>
setData</H3>
<PRE>
public void <B>setData</B>(byte[]&nbsp;buf,
                    int&nbsp;offset,
                    int&nbsp;length)</PRE>
<DL>
<DD>Set the data buffer for this packet. This sets the
 data, length and offset of the packet.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - the buffer to set for this packet<DD><CODE>offset</CODE> - the offset into the data<DD><CODE>length</CODE> - the length of the data<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/NullPointerException.html">NullPointerException</A></CODE> - if the argument is null<DT><B>Since: </B><DD>JDK1.2</DD>
<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#getData()"><CODE>getData()</CODE></A>, 
<A HREF="../../java/net/DatagramPacket.html#getOffset()"><CODE>getOffset()</CODE></A>, 
<A HREF="../../java/net/DatagramPacket.html#getLength()"><CODE>getLength()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setAddress(java.net.InetAddress)"><!-- --></A><H3>
setAddress</H3>
<PRE>
public void <B>setAddress</B>(<A HREF="../../java/net/InetAddress.html">InetAddress</A>&nbsp;iaddr)</PRE>
<DL>
<DD>Sets the IP address of the machine to which this datagram
 is being sent.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>iaddr</CODE> - the <code>InetAddress</code><DT><B>Since: </B><DD>JDK1.1</DD>
<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#getAddress()"><CODE>getAddress()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setPort(int)"><!-- --></A><H3>
setPort</H3>
<PRE>
public void <B>setPort</B>(int&nbsp;iport)</PRE>
<DL>
<DD>Sets the port number on the remote host to which this datagram
 is being sent.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>iport</CODE> - the port number<DT><B>Since: </B><DD>JDK1.1</DD>
<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#setPort(int)"><CODE>setPort(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setData(byte[])"><!-- --></A><H3>
setData</H3>
<PRE>
public void <B>setData</B>(byte[]&nbsp;buf)</PRE>
<DL>
<DD>Set the data buffer for this packet. If the length of the
 packet length is greater than the length of argument to this
 method, the length is reset to the the length of the argument.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - the buffer to set for this packet.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/NullPointerException.html">NullPointerException</A></CODE> - if the argument is null.<DT><B>Since: </B><DD>JDK1.1</DD>
<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#getLength()"><CODE>getLength()</CODE></A>, 
<A HREF="../../java/net/DatagramPacket.html#getData()"><CODE>getData()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setLength(int)"><!-- --></A><H3>
setLength</H3>
<PRE>
public void <B>setLength</B>(int&nbsp;length)</PRE>
<DL>
<DD>Set the length for this packet. The length of the packet is
 the number of bytes from the packet's data buffer that will be
 sent, or the number of bytes of the packet's data buffer that
 will be used for receiving data. The length must be lesser or
 equal to the length of the packet's buffer.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>length</CODE> - the length to set for this packet.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if the length is negative
 of if the length is greater than the packet's data buffer
 length.<DT><B>Since: </B><DD>JDK1.1</DD>
<DT><B>See Also: </B><DD><A HREF="../../java/net/DatagramPacket.html#getLength()"><CODE>getLength()</CODE></A>, 
<A HREF="../../java/net/DatagramPacket.html#setData(byte[], int, int)"><CODE>setData(byte[], int, int)</CODE></A></DL>
</DD>
</DL>
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