What is InetAddress?
public class InetAddress extends Object implements Serializable. This class represents an Internet Protocol (IP) address. An IP address is either a 32-bit or 128-bit unsigned number used by IP, a lower-level protocol on which protocols like UDP and TCP are built.
What is InetAddress getByName?
The getByName() method of InetAddress class determines the IP address of a host from the given host’s name. If the host name is null, then an InetAddress representing an address of the loopback interface is returned.
What is InetAddress getLocalHost ()?
Java InetAddress getLocalHost() method The getLocalHost() method of Java InetAddress class returns the instance of InetAddress containing local host name and address. In this, firstly the host name is retrieved from the system, then that name is resolved into InetAddress.
What does InetAddress getHostName () method return?
The getHostName() method Java InetAddress returns the host name of a corresponding IP address. If this InetAddress was created with a host name, this host name will be remembered and returned else a reverse name lookup will be performed and the result will be returned based on the system configured name lookup service.
Which is the factory method of InetAddress class?
Factory Methods are static methods in a class that return an object of that class. This method returns the instance of InetAddress containing the local hostname and address. This method returns the instance of InetAddress containing LocalHost IP and name.
What is InetAddress class in Java?
Java InetAddress class represents an IP address. The java. net. InetAddress class provides methods to get the IP of any host name for example www.javatpoint.com, www.google.com, www.facebook.com, etc. An instance of InetAddress represents the IP address with its corresponding host name.
What is the return type of getAddress () method of InetAddress?
The getAddress method of Java InetAddress class returns the IP address associated with this object as an array of bytes in network order. That means the first element of the array contains the highest order byte, and the last element of array contains the lowest order type.
How does InetAddress compare in Java?
Java InetAddress equals() method
- Syntax: public Boolean equals(Object obj)
- Parameters: The parameter ‘obj’ represents the object to be compared with this object.
- Overrides. equals() method in class Object.
- Example 1.
- Example 2.
Is Java a loopback address?
The getLoopbackAddress() method of Java InetAddress class returns the loopback address. It will return the local-only, loopback address whereas getLocalHost() method will return the address registered with the machine name.
What is the Java method for Ping?
isReachable(5000) is a way to ping a server in java.
What is the java method for Ping?
What is TCP IP in java?
The java.net package provides support for the two common network protocols − TCP − TCP stands for Transmission Control Protocol, which allows for reliable communication between two applications. TCP is typically used over the Internet Protocol, which is referred to as TCP/IP.
Why does inetaddress return false, when I can ping the IP address?
Unfortunately, ping executes correctly if it can’t reach the target host but gets a “Destination host unreachable” from your home ADSL router. This is kind of a reply that gets treated as a successfull hit, thus exit code = 0. Have to add though that this is on a Windows system.
What does it mean to Ping An IP address?
PING stands for Packet InterNet Groper in computer networking field. It’s a computer network administration software used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
Is it possible to Ping An IP address in Java?
ICMP is not supported in Java and ping in Java as it relies on ICMP We can’t simply ping in Java as it relies on ICMP, which is sadly not supported in Java. This Java Program pings an IP address in Java using InetAddress class. It is successful in case of Local Host but for other hosts this program shows that the host is unreachable.
What’s the best way to Ping a host?
You can use this method to ping hosts on Windows and other platforms: short recommendation: don’t use isReachable (), call the system ping, as proposed in some of the answers above. ping uses the ICMP network protcol. To use ICMP, a ‘raw socket’ is needed