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Java Standard Edition (SE)

InterfaceAddress


compact1, compact2, compact3
java.net

Class InterfaceAddress



  • public class InterfaceAddress
    extends Object
    This class represents a Network Interface address. In short it's an IP address, a subnet mask and a broadcast address when the address is an IPv4 one. An IP address and a network prefix length in the case of IPv6 address.
    Since:
    1.6
    See Also:
    NetworkInterface
    • Method Detail

      • getAddress

        public InetAddress getAddress()
        Returns an InetAddress for this address.
        Returns:
        the InetAddress for this address.
      • getBroadcast

        public InetAddress getBroadcast()
        Returns an InetAddress for the broadcast address for this InterfaceAddress.

        Only IPv4 networks have broadcast address therefore, in the case of an IPv6 network, null will be returned.

        Returns:
        the InetAddress representing the broadcast address or null if there is no broadcast address.
      • getNetworkPrefixLength

        public short getNetworkPrefixLength()
        Returns the network prefix length for this address. This is also known as the subnet mask in the context of IPv4 addresses. Typical IPv4 values would be 8 (255.0.0.0), 16 (255.255.0.0) or 24 (255.255.255.0).

        Typical IPv6 values would be 128 (::1/128) or 10 (fe80::203:baff:fe27:1243/10)

        Returns:
        a short representing the prefix length for the subnet of that address.
      • equals

        public boolean equals(Object obj)
        Compares this object against the specified object. The result is true if and only if the argument is not null and it represents the same interface address as this object.

        Two instances of InterfaceAddress represent the same address if the InetAddress, the prefix length and the broadcast are the same for both.

        Overrides:
        equals in class Object
        Parameters:
        obj - the object to compare against.
        Returns:
        true if the objects are the same; false otherwise.
        See Also:
        hashCode()
      • toString

        public String toString()
        Converts this Interface address to a String. The string returned is of the form: InetAddress / prefix length [ broadcast address ].
        Overrides:
        toString in class Object
        Returns:
        a string representation of this Interface address.


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