Android - An Open Handset Alliance Project

java.net
public final class

java.net.Inet4Address

java.lang.Object
	java.net.InetAddress		Serializable
		java.net.Inet4Address

Summary

Public Methods

				boolean	equals(Object obj)
					Returns true if obj is of the same type as the IPv4 address and they have the same IP address, false otherwise.
				String	getHostAddress()
					Returns a String representation of the IP address.
				int	hashCode()
					Overrides the basic hashcode function.
				boolean	isAnyLocalAddress()
					Answers if the address is the ANY Address
				boolean	isLinkLocalAddress()
					Answers whether this address has link-local scope.
				boolean	isLoopbackAddress()
					Answers true if the address is a loopback address.
				boolean	isMCGlobal()
					Answers true if an address is a global multicast address.
				boolean	isMCLinkLocal()
					Answers true if the address is a link-local address.The valid range for IPv4 link-local addresses is: 224.0.0.0 to 239.0.0.255 Hence a mask of 111000000000000000000000 = 0xE00000
				boolean	isMCNodeLocal()
					Answers false for all IPv4 addresses.
				boolean	isMCOrgLocal()
					Answers true if the address is a organization-local address.
				boolean	isMCSiteLocal()
					Answers true if the address is a site-local address.The valid range for IPv4 site-local addresses is: 239.255.0.0 to 239.255.255.255 Hence a mask of 11101111 11111111 = 0xEFFF.
				boolean	isMulticastAddress()
					Answers true if the address is a multicast address.
				boolean	isSiteLocalAddress()
					Answers whether this address has site-local scope.

Methods inherited from class java.net.InetAddress

	boolean	equals(Object obj)
		Compares this `InetAddress` against the specified object.
	byte[]	getAddress()
		Returns the IP address of this `InetAddress` as an array.
static	InetAddress[]	getAllByName(String host)
		Answer the IP addresses of a named host.
static	InetAddress	getByAddress(String hostName, byte[] ipAddress)
		Answers the InetAddress corresponding to the array of bytes, and the given hostname.
static	InetAddress	getByAddress(byte[] ipAddress)
		Answers the InetAddress corresponding to the array of bytes.
static	InetAddress	getByName(String host)
		Answers the address of a host, given a host string name.
	String	getCanonicalHostName()
		Answers canonical name for the host associated with the internet address
	String	getHostAddress()
		Answer the dotted string IP address representing this address.
	String	getHostName()
		Answer the host name.
static	InetAddress	getLocalHost()
		Answer the local host, if allowed by the security policy.
	int	hashCode()
		Answer a hashcode for this IP address.
	boolean	isAnyLocalAddress()
		Method isAnyLocalAddress.
	boolean	isLinkLocalAddress()
		Answers true if the address is a link local address.
	boolean	isLoopbackAddress()
		Answer true if the address is a loop back address.
	boolean	isMCGlobal()
		Answers true if the address is a global multicast address.
	boolean	isMCLinkLocal()
		Answers true if the address is a link local multicast address.
	boolean	isMCNodeLocal()
		Answers true if the address is a node local multicast address.
	boolean	isMCOrgLocal()
		Answers true if the address is a organization local multicast address.
	boolean	isMCSiteLocal()
		Answers true if the address is a site local multicast address.
	boolean	isMulticastAddress()
		Answer true if the InetAddress is an IP multicast address.
	boolean	isReachable(int timeout)
		Tries to see if the InetAddress is reachable.
	boolean	isReachable(NetworkInterface netif, int ttl, int timeout)
		Tries to see if the InetAddress is reachable.
	boolean	isSiteLocalAddress()
		Answers true if the address is a site local address.
	String	toString()
		Answers a string containing a concise, human-readable description of the address.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

	Object	clone()
		Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
	boolean	equals(Object o)
		Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
	void	finalize()
		Called by the virtual machine when there are no longer any (non-weak) references to the receiver.
final	Class	getClass()
		Answers the unique instance of java.lang.Class which represents the class of the receiver.
	int	hashCode()
		Answers an integer hash code for the receiver.
final	void	notify()
		Causes one thread which is `wait` ing on the receiver to be made ready to run.
final	void	notifyAll()
		Causes all threads which are `wait` ing on the receiver to be made ready to run.
	String	toString()
		Answers a string containing a concise, human-readable description of the receiver.
final	void	wait(long time, int frac)
		Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final	void	wait(long time)
		Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final	void	wait()
		Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by `notify` or `notifyAll`).

Details

Public Methods

public boolean equals(Object obj)

Returns true if obj is of the same type as the IPv4 address and they have the same IP address, false otherwise.

Parameters

obj	the object to be tested for equality

Returns

true if equal and false otherwise

public String getHostAddress()

Returns a String representation of the IP address.

Returns

Host address

public int hashCode()

Overrides the basic hashcode function.

Returns

the hash code

public boolean isAnyLocalAddress()

Answers if the address is the ANY Address

Returns

boolean

public boolean isLinkLocalAddress()

Answers whether this address has link-local scope. RFC 3484 Default Address Selection for Internet Protocol version 6 (IPv6) states IPv4 auto-configuration addresses, prefix 169.254/16, IPv4 loopback addresses, prefix 127/8, are assigned link-local scope.

Returns

boolean

public boolean isLoopbackAddress()

Answers true if the address is a loopback address. Loopback ipv4 addresses are prefixed with: 011111111 = 127

Returns

boolean

public boolean isMCGlobal()

Answers true if an address is a global multicast address. Valid MCGlobal IPv4 addresses are 224.0.1.0 - 238.255.255.255

Returns

boolean true, if the address is in the global multicast group, false otherwise

public boolean isMCLinkLocal()

Answers true if the address is a link-local address.The valid range for IPv4 link-local addresses is: 224.0.0.0 to 239.0.0.255 Hence a mask of 111000000000000000000000 = 0xE00000

Returns

boolean

public boolean isMCNodeLocal()

Answers false for all IPv4 addresses. There are no valid IPv4 Node-local addresses

Returns

boolean

public boolean isMCOrgLocal()

Answers true if the address is a organization-local address. The valid range for IPv4 org-local addresses is: 239.192.0.0 to 239.195.255.255 Hence masks of 11101111 11000000 to 11101111 11000011 are valid. 0xEFC0 to 0xEFC3

Returns

true if org local address, false otherwise

public boolean isMCSiteLocal()

Answers true if the address is a site-local address.The valid range for IPv4 site-local addresses is: 239.255.0.0 to 239.255.255.255 Hence a mask of 11101111 11111111 = 0xEFFF.

Returns

boolean

public boolean isMulticastAddress()

Answers true if the address is a multicast address. Valid IPv4 multicast addresses are prefixed with 1110 = 0xE

Returns

boolean

public boolean isSiteLocalAddress()

Answers whether this address has site-local scope. RFC 3484 Default Address Selection for Internet Protocol version 6 (IPv6) states IPv4 private addresses, prefixes 10/8, 172.16/12, and 192.168/16, are assigned site-local scope.

Returns

boolean

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Documentation

Goodies

java.net.Inet4Address

Summary

Public Methods

Methods inherited from class java.net.InetAddress

Methods inherited from class java.lang.Object

Details

Public Methods

public boolean equals(Object obj)

Parameters

Returns

public String getHostAddress()

Returns

public int hashCode()

Returns

public boolean isAnyLocalAddress()

Returns

public boolean isLinkLocalAddress()

Returns

public boolean isLoopbackAddress()

Returns

public boolean isMCGlobal()

Returns

public boolean isMCLinkLocal()

Returns

public boolean isMCNodeLocal()

Returns

public boolean isMCOrgLocal()

Returns

public boolean isMCSiteLocal()

Returns

public boolean isMulticastAddress()

Returns

public boolean isSiteLocalAddress()

Returns


e.g. "intent" or "activity"