Tech Differences

Difference Between HashMap and LinkedHashMap in Java

HashMap and LinkedHashMap are the classes, quite similar to each other and are used for creating a map. HashMap class extends the AbstractMap class to use a hash table to store the elements in the map. LinkedHashMap class maintains the entries in the map based on their insertion order. The feature that distinguishes HashMap and LinkedHashMap from each other is that Hashmap does not maintain the order of the stored entries in a map. On the other hand, LinkedHashMap uses a hybrid data structure … [Read more...]

Difference Between List and ArrayList in Java

List and ArrayList are the members of Collection framework. List is a collection of elements in a sequence where each element is an object and elements are accessed by there position (index). ArrayList creates a dynamic array of objects that increases or reduces in size whenever required. The primary difference between List and ArrayList is that List is an interface and ArrayList is a class. Let us study the difference between the List and ArrayList with the help of comparison chart shown … [Read more...]

Difference Between Analog and Digital Signal

Analog and Digital are the different forms of signals. Signals are used to carry information from one device to another. Analog signal is a continuous wave that keeps on changing over a time period. Digital signal is discrete in nature. The fundamental difference between analog and digital signal is that analog signal is represented by the sine waves whereas, the digital signal is represented by square waves. Lets us learn some more differences between analog and digital signal with the help … [Read more...]

Difference Between Modem and Router

Modem and router are the networking devices. Where a modem connects your computer or your network to the telephone line (Internet Service Provider) for accessing the internet. A router is meant for connecting different networks together. The basic difference between modem and router is that modem necessary for connecting your computer network to the internet whereas, a router is essential to direct the path to the traffic of data packets on the network. Let us study some more differences … [Read more...]

Difference Between Circuit Switching and Packet Switching

Circuit switching and packet switching are the two switching methods that are used to connect the multiple communicating devices with one another. Circuit Switching was particularly designed for voice communication and it was less suitable for data transmission. So, a better solution evolved for data transmission called Packet switching. The main difference between circuit switching and packet switching is that Circuit Switching is connection oriented whereas, Packet Switching is … [Read more...]

Difference Between Router and Switch

Router and switch both are the connecting devices in networking. A router is used to choose the smallest path for a packet to reach its destination. A switch stores the arrived packet, process it to determine its destination address and forwards the packet to a specific destination. The basic difference between a router and a switch is that a router connects different networks together whereas, a switch connect multiple devices together to create a network. Let us study some other differences … [Read more...]

Difference Between MAC Address and IP Address

MAC and IP are the addresses that uniquely defines a device and a connection in a network. A MAC address is a number assigned to the NIC card by the manufacturer. IP address is a number assigned to the connection in a network. The basic difference between MAC address and IP address is that a MAC address uniquely identifies a device that wants to take part in a network. On the other hand, an IP address uniquely defines a connection of a network with an interface of a device. Let us study some … [Read more...]

Difference Between Cc and Bcc

Cc and Bcc are fields that contains the list of the recipients of an email. The Cc field is used when we want a second party to have a record of an email that is sent to the primary recipient and let the primary recipients have knowledge of this. The Bcc field is used when we want a third party to keep the record of an email sent to primary recipients, the recipients of Cc without their knowledge. The basic difference between Cc and Bcc is that the recipients of Cc are visible to all, on the … [Read more...]

Difference Between Thread Class and Runnable Interface in Java

A thread can be defined in two ways. First, by extending a Thread class that has already implemented a Runnable interface. Second, by directly implementing a Runnable interface. When you define a thread by extending Thread class you have to override the run() method in Thread class. When you define a thread implementing a Runnable interface you have to implement the only run() method of Runnable interface. The basic difference between Thread and Runnable is that each thread defined by … [Read more...]

Difference Between extends and implements keywords in Java

The keywords extends and implements are used to inherit the features of an already existing parent block in newly created child block. Using extends keyword, a newly created class (subclass) can inherit the features of an existing class (superclass). Using implements keyword a newly created class can implement all the methods of an interface. The primary difference between keywords extends and implements is that a class extends another class to inherit all its members whereas, a class … [Read more...]