Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
The dequeue is a double ended queue and data elements can be added or removed from either end. The dequeue in Java is implemented using the java.util.Deque interface which is a subtype of the java.util.Queue interface.A program that demonstrates some of the methods of a dequeue is given as follows −Example Live Demoimport java.util.*; public class Example { public static void main(String[] args) { Deque d = new LinkedList(); d.add("5"); d.addFirst("1"); d.addLast("9"); d.push("7"); d.offer("8"); d.offerFirst("6"); d.offerLast("2"); ... Read More
Binary Number System is one the type of Number Representation techniques. It is most popular and used in digital systems. Binary system is used for representing binary quantities which can be represented by any device that has only two operating states or possible conditions. For example, a switch has only two states: open or close.In the Binary System, there are only two symbols or possible digit values, i.e., 0 and 1. Represented by any device that only 2 operating states or possible conditions. Binary numbers are indicated by the addition of either an 0b prefix or an 2 suffix.Position of ... Read More
The Lempel–Ziv–Markov chain algorithm(LZMA) performs lossless data compression using a dictionary compression scheme featuring a higher compression ratio than other compression algorithms. Python’s lzma module consists of classes and convenience functions for compression and decompression of data with LZMA algorithm.Although the functionality in this module is similar to that of bz2 module, the LZMAFile class is not thread safe as compared to BZ2File class.Here again, open() function in lzma module is a very easiest way to open lzma-compressed file object.open()This function opens a LZMA-compressed file and returns a file object. The function requires two main parameters – file name and ... Read More
Decimal system is most familiar number system to the general public. It is base 10 which has only 10 symbols − 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. Whereas octal system is one of the number systems to represent numbers. It is base 8 which has only 8 symbols − 0, 1, 2, 3, 4, 5, 6, and 7.Conversion from Decimal to Octal number systemThere are various direct or indirect methods to convert a decimal number into octal number. In an indirect method, you need to convert a decimal number into other number system (e.g., binary ... Read More
In Some situations, we should need to show HTML as text in android. Here is the simple solution to show HTML in TextView in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Bundle; import android.support.v4.text.HtmlCompat; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; public class MainActivity extends AppCompatActivity { String htmlText = "What is Android?" + "Android is an open source and Linux-based ... Read More
Android supports both gravity and layout_gravity. Gravity adjusts view position. Using gravity we can do alignment of view as shown below.In the above code Textview going to set in middle of parent layout.Properties of GravityCenter − it going to put view in center of parent layout.Right − it going to put view in right of parent layout.Left − it going to put view in left of parent layout.End − it going to put view in end position of parent layout.Start − it going to put view in start position of parent layout.Top − It going to put view in Top ... Read More
Each date of birth corresponds to a given Zodiac sign. A table that demonstrates these signs and their corresponding dates is given below −Zodiac SignDateAriesMarch 21 - April 19TaurusApril 20 - May 20GeminiMay 21 - June 20CancerJune 21 - July 22LeoJuly 23 - August 22VirgoAugust 23 - September 22LibraSeptember 23 - October 22ScorpioOctober 23 - November 21SagittariusNovember 22 - December 21CapricornDecember 22 - January 19AquariusJanuary 20 - February 18PiscesFebruary 19 - March 20A program that displays the Astrological sign or Zodiac sign for a given date of birth is given as follows.Example Live Demopublic class Example { public static void ... Read More
Before getting into NotificationCompact.Builder, we should know what is a notification in android. Notification is just like as a message showing system on the action bar. just like missed call notification as shown belowThis example demonstrates how to integrate Android Notification.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project, and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.annotation.SuppressLint; import android.app.Notification; import android.app.NotificationChannel; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import ... Read More
Before getting into Custom Toast, we should know about what is toast. Toast is used to display message on current screen for sometime. After some time it doing to disappear. In this example we can learn how to customize toast message.This example demonstrate about how to create custom toast message in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following ... Read More
Passing Drop Down Box Data to CGI ProgramDrop Down Box is used when we have many options available but only one or two will be selected.Here is example HTML code for a form with one drop down box − Maths Physics The result of this code is the following form − SubmitBelow is dropdown.py script to handle input given by web browser.#!/usr/bin/python # Import modules for CGI handling import cgi, cgitb # Create instance of FieldStorage form ... Read More