Java Interview Questions

HashSet extends AbstractSet and implements the Set interface. It creates a collection that uses a hash table for storage. As most readers likely know, a hash table stores information by using a mechanism called hashing. In hashing, the informational content of a key is used to determine a unique value, called its hash code. The [...]

Note: Establishing Communication between a Server and a Client through a socket is called Socket Programming To create the Client Socket Socket Class is available in java.net package. To create ServerSocket, ServerSocket class is avialable in java.net package A Client is a machine that sends a request for some service A Server is machine that [...]

When a new Socket is created new port number should be allocated. When the service on the same socket is changed, a new port number should be alloted. Note :- Some alloted port numbers : port no. Application 13                                    Date and time Services 21                                    FTP,Which transfers files 23                                   Telnet,Which provides remote login 25                                   SMTP,Which delivers [...]

Rep) Sets (or) set Classes will not allow duplicate values