Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Hexadecimal literal of type long is represented as − long hexLong = 0XABL; For Hexadecimal, the 0x or 0X is to be placed in the beginning of a number. Note − Digits 10 to 15 are represented by a to f (A to F) in Hexadecimal Example Live Demo public class Demo { public static void main(String []args) { long hexLong = 0XABL; System.out.println("Hexadecimal literal of type long: "+hexLong); } } Output Hexadecimal literal of type long:171
In this section, we will see how to print formatted texts in Linux terminal. By formatting, we can change the text color, style, and some special features. Linux terminal supports some ANSI escape sequences to control the formatting, color and other features. So we have to embed some bytes with the text. So when the terminal is trying to interpret them, those formatting will be effective. The general syntax of ANSI escape sequence is like below − \x1b[A;B;C A is the Text Formatting Style B is the Text Color or Foreground Color C is the Background ... Read More
Before getting into alert dialog, we should know about what is alert dialog, Alert dialog is just like a pop-up where user can choose action by clicking "ok" or "cancel" button.Methods in Alert DialogsetView(View view) − It used to set custom view to alert dialogsetTitle(CharSequence title) − It is used to set title to alert dialogsetMessage(CharSequence message) − It is simple call as content in alert boxsetIcon(int resId) − it is used to set icon for alert boxsetButton(int whichButton, CharSequence text, Message msg) − It is used to set button for alert dialog as shown below example.getListView() − it is used to ... Read More
Python can handle the precision of floating point numbers using different functions. Most functions for precision handling are defined in the math module. So to use them, at first we have to import the math module, into the current namespace. import math Now we will see some of the functions for precision handling. The trunc() function The trunc() method is used to remove all fractional part from a floating point number. So it returns only the integer part from the number. The ceil() function The ceil() method is used to return the Ceiling value of a ... Read More
Literals with a leading zero are octal literals. Any number prefixed with a 0 is considered octal. Octal numbers can only use digits 0-7, just like decimal can use 0-9, and binary can use 0-1. To define integer literals as octal value in Java is effortless. Here is the declaration and initialization. int myOct = 023; Example Live Demo public class Demo { public static void main(String []args) { int myOct = 023; System.out.println(myOct); } } Output 19 Let us see another example. Example Live Demo public class Demo { public static void main(String []args) { int myOct = 010; System.out.println(myOct); } } Output 8
Serialization/ De-serialization allow communication with another application by sending and receiving data. With XmlSerializer, you can control how objects are encoded into XML. To perform XML Serialization, you need the following two classes − StreamWriter class XmlSerializer class Call the Serialize method with the parameters of the StreamWriter and object to serialize. string myPath = "new.xml"; XmlSerializer s = new XmlSerializer(settings.GetType()); StreamWriter streamWriter = new StreamWriter(myPath); s.Serialize(streamWriter, settings); An XML file is visible with the name “new.xml”. Now to deserialize. MySettings mySettings = new MySettings(); string myPath = "new.xml"; XmlSerializer ... Read More
Like other languages, Python also has some reserved words. These words hold some special meaning. Sometimes it may be a command, or a parameter etc. We cannot use keywords as variable names. The Python Keywords are True False class def return if elif else try except raise finally for in is not from import global lambda nonlocal pass while break continue and with as yield del or assert None The True & False Keywords The True and False are the truth ... Read More
Definition Network switching is the process of transmitting data packets from the source to the destination through a number of intermediate network nodes. Here, each node controls or switches data packets to the next node towards the destination. When data comes on a node it is called ingress, and when data goes out of a node it is called egress. Switching Methods The two broad level switching methods are connection oriented switching and connectionless switching. Connection – oriented Switching : In connection – oriented switching, a dedicated path is established between the source and the destination before data switching. ... Read More
Public Switched Telephone Network (PSTN) is an agglomeration of an interconnected network of telephone lines owned by both governments as well as commercial organizations. Properties of PSTN It is also known as Plain Old Telephone Service (POTS) It has evolved from the invention of telephone by Alexander Graham Bell. The individual networks can be owned by national government, regional government or private telephone operators. Its main objective is to transmit human voice in a recognizable form. It is an aggregation of circuit-switched networks of the world. Originally, it was an entirely analog network laid with copper cables ... Read More
Packet switching is a connectionless network switching technique. Here, the message is divided and grouped into a number of units called packets that are individually routed from the source to the destination. There is no need to establish a dedicated circuit for communication. Process Each packet in a packet switching technique has two parts: a header and a payload. The header contains the addressing information of the packet and is used by the intermediate routers to direct it towards its destination. The payload carries the actual data. A packet is transmitted as soon as it is available in a node, ... Read More