java.net.InterfaceAddress

public class java.net

InterfaceAddress

Java SE 6

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	java.net.NetworkInterface

Methods

public boolean

equals(Object obj) Details

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.

obj the object to compare against.

return true if the objects are the same; false otherwise.

See also hashCode()

public int

hashCode() Details

Returns a hashcode for this Interface address.

return

a hash code value for this Interface address.

public String

toString() Details

Converts this Interface address to a String. The string returned is of the form: InetAddress / prefix length [ broadcast address ].

return

a string representation of this Interface address.

Properties

public InetAddress

getAddress() Details

Returns an InetAddress for this address.

return the InetAddress for this address.

public InetAddress

getBroadcast() Details

Returns an InetAddress for the brodcast address for this InterfaceAddress.

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

return the InetAddress representing the broadcast address or null if there is no broadcast address.

public short

getNetworkPrefixLength() Details

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)

return a short representing the prefix length for the subnet of that address.

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Java SE 6