We can extract content in web pages from a variety of domains such as data mining, information retrieval etc. To extract information from the websites of newspapers and magazines we are going to use newspaper library.The main purpose of this library is to extract and curates the articles from the newspapers and similar websites.Installation:To Newspaper library installation, run in your terminal:$ pip install newspaper3kFor lxml dependencies, run below command in your terminal$pip install lxmlTo install PIL, run$pip install PillowThe NLP corpora will be downloaded:$ curl https://raw.githubusercontent.com/codelucas/newspaper/master/download_corpora.py | pythonThe python newpaper library is used to collect information associated with articles. This ... Read More

Use the add() method to insert elements in the Stream.Builder. The element to be added is a parameter for the add().The following is the syntax:default Stream.Builder add(T t)Here, t is the element to be added.Import the following package for the Stream.Builder class in Java:import java.util.stream.Stream;At first, create Stream.Builder:Stream.Builder builder = Stream.builder();Now, add elements using add() method:builder.add("This"); builder.add("is"); builder.add("it!");Here is an example displaying how to implement add() method of Stream.Builder in Java:Example Live Demoimport java.util.stream.Stream; public class Demo {    public static void main(String[] args) {       Stream.Builder builder = Stream.builder();       builder.add("This");       builder.add("is");   ... Read More

There are multiple ways to wrap your existing C or C++ functionality in Python. In this section, we are going to see how we can wrap C/C++ functionality with SWIG. Below are other options to wrap c/c++ functionality in python.Manual wrappingUsing pyrex to wrap C code.CtypesSIPBoost PythonSWIG (Simple Wrapper Interface Generator) is capable of wrapping C code with numerous other languages including Perl, Python, PHP, Ruby, Tcl, C#, Common Lisp (CLISP, Allegro, CL, UFFI, CFFI), Java, Modula-3 and OCAML. Swig also supports multiple interpreted and compiled Scheme implementations (like Guile, MzScheme, Chicken) are supported.But we will discuss its implementation with ... Read More

The toString() method of the StringJoiner class in Java8 is used to return the string representation of the StringJoiner.The syntax of the toString() method is as follows:String toString()To work with the StringJoiner in Java 8, import the following package:import java.util.StringJoiner;The following is an example to implement StringJoiner toString() method in Java:Example Live Demoimport java.util.StringJoiner; public class Demo {    public static void main(String[] args) {       StringJoiner strJoin = new StringJoiner(" ");       strJoin.add("One");       strJoin.add("Two");       strJoin.add("Three");       strJoin.add("Four");       strJoin.add("Five");       System.out.println(strJoin.toString());    } }outputOne ... Read More

The StringJoiner class in Java 8 constructs a sequence of characters. This sequence is separated by a delimiter and optionally starting with a supplied prefix and ending with a supplied suffix.The following are the constructors of the StringJoiner class:StringJoiner(CharSequence delimiter): This constructor constructs a StringJoiner with no characters in it and with no prefix or suffix. It used the copy of the supplied delimiter.StringJoiner(CharSequence delimiter, CharSequence prefix, CharSequence suffix) This constructor constructs a StringJoiner with no characters in it. It uses the copies of the supplied prefix, delimiter and suffix.The syntax is as follows:public final class StringJoiner extends ObjectHere, class ... Read More

To iterate through the KeyValue tuple in Java, use the Iterable and loop it through using the for loop. Let us first see what we need to work with JavaTuples. To work with KeyValue class in JavaTuples, you need to import the following package:import org.javatuples.KeyValue;Note: Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for all the steps to run JavaTuples:Steps: How to run JavaTuples program in EclipseThe following is ... Read More

The main idea behind Natural Language Processing is machine can do some form of analysis or processing without human intervention at least to some level like understanding some part of what the text means or trying to say.While trying to process the text, computers needs to filter out useless or less-important data(words) from the text. In NLTK, useless words(data) are referred to as stop words.Installing Required libraryFirst you need the nltk library, just run the below command in your terminal:$pip install nltkSo we are going to remove these stop words, so they don’t take space in our database or taking ... Read More

In this, we are going to see how differently we can display our text in a very unique way using python.So let suppose I want to display “Hello, Python” and out many ways I could display my text/string (“Hello, Python”) like:Input“Hello, Python”Output 1___ ___ .__ .__ / | \ ____ | | | | ____ / ~ \_/ __ \| | | | / _ \ \ Y /\ ___/| |_| |_( ) \___|_ / \___ >____/____/\____/ /\ \/ \/ )/ __________ __ .__ \______ \___.__._/ |_| |__ ____ ____ | ___< | |\ __\ | \ / _ ... Read More

Python now provides new way to format strings, called f-strings. This features is available from Python 3.6 under PEP-498. They are so called (f-string) because of the letter ‘f’ prefix with a string. The letter ‘f’ also indicates that these f-strings can be used for formatting.Below are some of the examples to demonstrates the use of f-strings.Program#1name = 'Rajesh' age = 13 * 3 fString = f'My name is {name} and my age is {age}' print(fString) #We can use Uppercase 'F' instead of lowercase 'f'. print(F'My name is {name} and my age is {age}') #As the fString valuation is done, ... Read More

Steganography is a technique of hiding information behind the scene. It’s is not like cryptography which focuses on encrypting data(through different algorithms like SHA1, MD5 etc), steganography focuses more on hiding the data (data can be a file, image, message or video) within another file, image, message or video to avoid any attraction.So in this we’ll try to create a simple python program that hides the information behind the image without noticiable changes in the looks of the image. There are two main parts of the program – first is a decoding function that can extract secret information from an ... Read More