- java.lang.Object
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- java.net.InterfaceAddress
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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
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanequals(Object obj)Compares this object against the specified object.InetAddressgetAddress()Returns anInetAddressfor this address.InetAddressgetBroadcast()Returns anInetAddressfor the broadcast address for this InterfaceAddress.shortgetNetworkPrefixLength()Returns the network prefix length for this address.inthashCode()Returns a hashcode for this Interface address.StringtoString()Converts this Interface address to aString.
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Method Detail
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getAddress
public InetAddress getAddress()
Returns anInetAddressfor this address.- Returns:
- the
InetAddressfor this address.
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getBroadcast
public InetAddress getBroadcast()
Returns anInetAddressfor the broadcast address for this InterfaceAddress.Only IPv4 networks have broadcast address therefore, in the case of an IPv6 network,
nullwill be returned.- Returns:
- the
InetAddressrepresenting the broadcast address ornullif there is no broadcast address.
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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
shortrepresenting the prefix length for the subnet of that address.
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equals
public boolean equals(Object obj)
Compares this object against the specified object. The result istrueif and only if the argument is notnulland it represents the same interface address as this object.Two instances of
InterfaceAddressrepresent the same address if the InetAddress, the prefix length and the broadcast are the same for both.- Overrides:
equalsin classObject- Parameters:
obj- the object to compare against.- Returns:
trueif the objects are the same;falseotherwise.- See Also:
hashCode()
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hashCode
public int hashCode()
Returns a hashcode for this Interface address.- Overrides:
hashCodein classObject- Returns:
- a hash code value for this Interface address.
- See Also:
Object.equals(java.lang.Object),System.identityHashCode(java.lang.Object)
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