Java Network Interface Get getInterfaces()

Description

Return all interfaces (and subinterfaces) on the system

License

Apache License

Declaration

static List<NetworkInterface> getInterfaces() throws SocketException 

Method Source Code

//package com.java2s;
/*//from  www  . j  a  va2  s  . com
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import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Main {
    /** Return all interfaces (and subinterfaces) on the system */
    static List<NetworkInterface> getInterfaces() throws SocketException {
        List<NetworkInterface> all = new ArrayList<NetworkInterface>();
        addAllInterfaces(all, Collections.list(NetworkInterface.getNetworkInterfaces()));
        return all;
    }

    /** Helper for getInterfaces, recursively adds subinterfaces to {@code target} */
    private static void addAllInterfaces(List<NetworkInterface> target, List<NetworkInterface> level) {
        if (!level.isEmpty()) {
            target.addAll(level);
            for (NetworkInterface intf : level) {
                addAllInterfaces(target, Collections.list(intf.getSubInterfaces()));
            }
        }
    }
}

Related

1. getInterface(String ifaceName)
2. getInterfaceByName(String interfaceName)
3. getInterfaceDiagnostic()
4. getInterfaceInfo(NetworkInterface nif)
5. getInterfaces()
6. getInterfaces()
7. getInterfaces()
8. getInterfaces()
9. getInterfaces(final String interfaceName)