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Java example source code file (Util.java)
The Util.java Java example source code/* * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ import java.net.NetworkInterface; import java.net.InetSocketAddress; import java.net.SocketAddress; import java.net.InetAddress; import java.net.Inet4Address; import java.net.SocketException; import java.io.IOException; import java.io.PrintStream; import java.io.UnsupportedEncodingException; import java.util.List; import java.util.ArrayList; import java.util.Set; import java.util.Collections; import java.util.Enumeration; import java.util.Iterator; import java.nio.ByteBuffer; import com.sun.nio.sctp.SctpChannel; import static java.lang.System.out; public class Util { static final int SMALL_BUFFER = 128; static final String SMALL_MESSAGE = "Under the bridge and over the dam, looking for berries, berries for jam"; static final int LARGE_BUFFER = 32768; static final String LARGE_MESSAGE; static { StringBuffer sb = new StringBuffer(LARGE_BUFFER); for (int i=0; i<460; i++) sb.append(SMALL_MESSAGE); LARGE_MESSAGE = sb.toString(); } static boolean isSCTPSupported() { try { SctpChannel c = SctpChannel.open(); c.close(); return true; } catch (IOException ioe) { ioe.printStackTrace(); } catch (UnsupportedOperationException e) { out.println(e); } return false; } /** * Returns a list of all the addresses on the system. * @param inclLoopback * if {@code true}, include the loopback addresses * @param ipv4Only * it {@code true}, only IPv4 addresses will be included */ static List<InetAddress> getAddresses(boolean inclLoopback, boolean ipv4Only) throws SocketException { ArrayList<InetAddress> list = new ArrayList Other Java examples (source code examples)Here is a short list of links related to this Java Util.java source code file: |
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