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How to remove all non-alphanumeric characters from a string in Java	11 Jul, 2020 Given a string str, the task is to remove all non-alphanumeric characters from it and print the modified it. Examples: Input: @!Geeks-for’Geeks,123 Output: GeeksforGeeks123 Explanation: at symbol(@), exclamation point(!), dash(-), apostrophes(‘), and commas(, ) are removed. Input: Geeks_for$ Geeks?{}[] Ou...	[ { "code": null, "e": 53, "s": 25, "text": "\n11 Jul, 2020" }, { "code": null, "e": 173, "s": 53, "text": "Given a string str, the task is to remove all non-alphanumeric characters from it and print the modified it. Examples: " }, { "code": null, "e": 329, "s": 173...
Teradata - Secondary Index	A table can contain only one primary index. More often, you will come across scenarios where the table contains other columns, using which the data is frequently accessed. Teradata will perform full table scan for those queries. Secondary indexes resolve this issue. Secondary indexes are an alternate path to access the...	[ { "code": null, "e": 2897, "s": 2630, "text": "A table can contain only one primary index. More often, you will come across scenarios where the table contains other columns, using which the data is frequently accessed. Teradata will perform full table scan for those queries. Secondary indexes resolv...
KeyValuePair in C#	The KeyValuePair class stores a pair of values in a single list with C#. Set KeyValuePair and add elements − var myList = new List<KeyValuePair<string, int>>(); // adding elements myList.Add(new KeyValuePair<string, int>("Laptop", 20)); myList.Add(new KeyValuePair<string, int>("Desktop", 40)); myList.Add(new KeyValueP...	[ { "code": null, "e": 1135, "s": 1062, "text": "The KeyValuePair class stores a pair of values in a single list with C#." }, { "code": null, "e": 1171, "s": 1135, "text": "Set KeyValuePair and add elements −" }, { "code": null, "e": 1415, "s": 1171, "text": "va...
Program to check if an Array is Palindrome or not using STL in C++	Given an array arr[n] of n integers, the task is to find whether array is a palindrome or not. We have to do the stated task using STL in C++. In C++ there is a feature of STL(Standard Template Library), it is a set of C++ template classes which are used to provide the data structures and several functions such as stac...	[ { "code": null, "e": 1205, "s": 1062, "text": "Given an array arr[n] of n integers, the task is to find whether array is a palindrome or not. We have to do the stated task using STL in C++." }, { "code": null, "e": 1464, "s": 1205, "text": "In C++ there is a feature of STL(Standa...
HTML \| <thead> valign Attribute - GeeksforGeeks	25 Feb, 2022 The HTML thead valign Attribute is used to specify the vertical alignment of content inside the thead Element. Syntax: <thead valign="top \| middle \| bottom \| baseline"> Attribute values: top: It sets the content to top-align. middle: It sets the content to middle-align. bottom: It sets the content to botto...	[ { "code": null, "e": 31678, "s": 31650, "text": "\n25 Feb, 2022" }, { "code": null, "e": 31789, "s": 31678, "text": "The HTML thead valign Attribute is used to specify the vertical alignment of content inside the thead Element." }, { "code": null, "e": 31797, "s":...
Data Visualization: How to choose the right chart [Part 2] \| by XuanKhanh Nguyen \| Towards Data Science	This is the second installment in a two-part series on Data Visualization. If you haven’t read Part 1 of this series, I recommend checking that out! In part 1 of this series, we walked through the first three data visualization functions: relationship, data over time, and ranking plot. In case you need a quick refreshe...	[ { "code": null, "e": 321, "s": 172, "text": "This is the second installment in a two-part series on Data Visualization. If you haven’t read Part 1 of this series, I recommend checking that out!" }, { "code": null, "e": 495, "s": 321, "text": "In part 1 of this series, we walked t...
Can selenium handle Windows based pop up?	Selenium can handle Windows based pop up. There may be scenarios where a web page opens more than one window after performing some actions on it. The child windows that get opened may be a pop up containing some information or advertisement. Selenium uses the getWindowHandles () and getWindowHandle () methods to work w...	[ { "code": null, "e": 1304, "s": 1062, "text": "Selenium can handle Windows based pop up. There may be scenarios where a web page opens more than one window after performing some actions on it. The child windows that get opened may be a pop up containing some information or advertisement." }, { ...
Printing HELLO with turtle module - GeeksforGeeks	06 Oct, 2020 Turtle is a Python Module which allows us to draw a various geometrical illustration by just importing it in Python and using the inbuilt function of the turtle Module. We can use functions like turtle.forward(...) and turtle.right(...) which can move the turtle around. Turtle is a beginner-friendly way to...	[ { "code": null, "e": 24212, "s": 24184, "text": "\n06 Oct, 2020" }, { "code": null, "e": 24750, "s": 24212, "text": "Turtle is a Python Module which allows us to draw a various geometrical illustration by just importing it in Python and using the inbuilt function of the turtle Mo...
Shortest path in an unweighted graph - GeeksforGeeks	09 Nov, 2021 Given an unweighted graph, a source, and a destination, we need to find the shortest path from source to destination in the graph in the most optimal way. unweighted graph of 8 vertices Input: source vertex = 0 and destination vertex is = 7. Output: Shortest path length is:2 Path is:: 0 3...	[ { "code": null, "e": 24551, "s": 24523, "text": "\n09 Nov, 2021" }, { "code": null, "e": 24707, "s": 24551, "text": "Given an unweighted graph, a source, and a destination, we need to find the shortest path from source to destination in the graph in the most optimal way. " }, ...
Difference Between for loop and Enhanced for loop in Java - GeeksforGeeks	10 Feb, 2022 Java for-loop is a control flow statement that iterates a part of the program multiple times. For-loop is the most commonly used loop in java. If we know the number of iteration in advance then for-loop is the best choice. Syntax: for( initializationsection ; conditional check ; increment/decrement sectio...	[ { "code": null, "e": 24802, "s": 24774, "text": "\n10 Feb, 2022" }, { "code": null, "e": 25025, "s": 24802, "text": "Java for-loop is a control flow statement that iterates a part of the program multiple times. For-loop is the most commonly used loop in java. If we know the numbe...
Bet you didn’t know this about Airflow! \| by Jyoti Dhiman \| Towards Data Science	We are living in the Airflow era. Almost all of us started our scheduling journey with cronjobs and the transition to a workflow scheduler like Airflow has given us better handling with complex inter-dependent pipelines, UI based scheduling, retry mechanism, alerts & what not! AWS also recently announced managed airflo...	[ { "code": null, "e": 641, "s": 172, "text": "We are living in the Airflow era. Almost all of us started our scheduling journey with cronjobs and the transition to a workflow scheduler like Airflow has given us better handling with complex inter-dependent pipelines, UI based scheduling, retry mechani...
Solving A Data Science Challenge - The Visual Way \| by Sepehr Sisakht \| Towards Data Science	For the visual learners In this post I will show you some cool geospatial visualizations using Folium, including time variant mapping, and superimposing data binning on a Foium map in order to gain a deeper understanding of your geospatial data. This post could be used as a guide for exploratory analysis of geospatial ...	[ { "code": null, "e": 195, "s": 171, "text": "For the visual learners" }, { "code": null, "e": 497, "s": 195, "text": "In this post I will show you some cool geospatial visualizations using Folium, including time variant mapping, and superimposing data binning on a Foium map in or...
How to create and apply CSS to JavaScript Alert box?	The standard alert box in JavaScript does not provide the option to apply CSS. To style your alert box, you need to create a custom one first. The custom alert box will be created using jQuery and styles will be applied to CSS. You can try to run the following code to learn how to create and apply CSS to alert box − Li...	[ { "code": null, "e": 1291, "s": 1062, "text": " The standard alert box in JavaScript does not provide the option to apply CSS. To style your alert box, you need to create a custom one first. The custom alert box will be created using jQuery and styles will be applied to CSS." }, { "code": nu...
user defined exceptions in Java - onlinetutorialspoint	PROGRAMMINGJava ExamplesC Examples Java Examples C Examples C Tutorials aws JAVAEXCEPTIONSCOLLECTIONSSWINGJDBC EXCEPTIONS COLLECTIONS SWING JDBC JAVA 8 SPRING SPRING BOOT HIBERNATE PYTHON PHP JQUERY PROGRAMMINGJava ExamplesC Examples Java Examples C Examples C Tutorials aws User-defined exceptions in Java are used to h...	[ { "code": null, "e": 158, "s": 123, "text": "PROGRAMMINGJava ExamplesC Examples" }, { "code": null, "e": 172, "s": 158, "text": "Java Examples" }, { "code": null, "e": 183, "s": 172, "text": "C Examples" }, { "code": null, "e": 195, "s": 183, ...
Bootstrap .btn-primary class	The .btn-primary class provides extra visual weight and identifies the primary action in a set of buttons: Live Demo <!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <meta name = "viewport" content = "width=device-width, initial-scale=1"> <link rel = "stylesheet" href = "https://stack...	[ { "code": null, "e": 1169, "s": 1062, "text": "The .btn-primary class provides extra visual weight and identifies the primary action in a set of buttons:" }, { "code": null, "e": 1179, "s": 1169, "text": "Live Demo" }, { "code": null, "e": 1764, "s": 1179, "te...
CelebA Attribute Prediction and Clustering with Keras \| by Luca Anzalone \| Towards Data Science	In this article, we talk about facial attribute prediction. We will examine the dataset and point out its weaknesses. Furthermore, we will build and train a deep model and finally discuss the overall results. Facial Attribute prediction is a Computer Vision (CV) task about deducing the set of attributes belonging to a ...	[ { "code": null, "e": 380, "s": 171, "text": "In this article, we talk about facial attribute prediction. We will examine the dataset and point out its weaknesses. Furthermore, we will build and train a deep model and finally discuss the overall results." }, { "code": null, "e": 568, ...
Tug of War Algorithm	In this problem a set of integers are given, we have to break them into two parts, such that the difference of the sum of two subsets is minimum as possible. So our target is to divide two groups of nearly equal strength to participate in the Tug of war game. If the size of subset n is even, it must be divided into n/2...	[ { "code": null, "e": 1322, "s": 1062, "text": "In this problem a set of integers are given, we have to break them into two parts, such that the difference of the sum of two subsets is minimum as possible. So our target is to divide two groups of nearly equal strength to participate in the Tug of war...
Slideio: a new python library for reading medical images. \| by Stanislav Melnikov \| Towards Data Science	This is an introduction to a new python library for the reading of medical images. More detailed information can be found on the project WEB site: www.slideio.com. The source code is available on a GitLab repository: https://gitlab.com/bioslide/slideio. Medical images — images produced by bio-scanners, microscopes, etc...	[ { "code": null, "e": 425, "s": 171, "text": "This is an introduction to a new python library for the reading of medical images. More detailed information can be found on the project WEB site: www.slideio.com. The source code is available on a GitLab repository: https://gitlab.com/bioslide/slideio." ...
How can we convert a JSON array to a list using Jackson in Java?	A Jackson is a Java-based library and it can be useful to convert Java objects to JSON and JSON to Java Object. A Jackson API is faster than other API, needs less memory area and is good for the large objects. We can convert a JSON array to a list using the ObjectMapper class. It has a useful method readValue() which t...	[ { "code": null, "e": 1471, "s": 1062, "text": "A Jackson is a Java-based library and it can be useful to convert Java objects to JSON and JSON to Java Object. A Jackson API is faster than other API, needs less memory area and is good for the large objects. We can convert a JSON array to a list using...
What are Python function attributes?	Everything in Python is an object, and almost everything has attributes and methods. In python, functions too are objects. So they have attributes like other objects. All functions have a built-in attribute __doc__, which returns the doc string defined in the function source code. We can also assign new attributes to t...	[ { "code": null, "e": 1439, "s": 1062, "text": "Everything in Python is an object, and almost everything has attributes and methods. In python, functions too are objects. So they have attributes like other objects. All functions have a built-in attribute __doc__, which returns the doc string defined ...
C++ Program to Implement the linear congruential generator for Pseudo Random Number Generation	The linear congruential generator is a very simple example of a random number generator. It is one of the oldest and best-known pseudorandom number generator algorithms. The function which is used in this method − Xn+1=(aXn + C) mod m where X is the sequence of pseudorandom values, and m,0<m— the “modulus" a,0<a<m — th...	[ { "code": null, "e": 1276, "s": 1062, "text": "The linear congruential generator is a very simple example of a random number generator. It is one of the oldest and best-known pseudorandom number generator algorithms. The function which is used in this method −" }, { "code": null, "e": 12...
Get Nth Column of Matrix in Python	When it is required to get the ‘n’th column of a matrix, the ‘any’ method can be used. Below is a demonstration of the same − Live Demo my_list = [[34, 67, 89], [16, 27, 86], [48, 30, 0]] print("The list is : ") print(my_list) N = 1 print("The value of N has been initialized to -") print(N) elem = 30 my_result = an...	[ { "code": null, "e": 1149, "s": 1062, "text": "When it is required to get the ‘n’th column of a matrix, the ‘any’ method can be used." }, { "code": null, "e": 1188, "s": 1149, "text": "Below is a demonstration of the same −" }, { "code": null, "e": 1199, "s": 1188...
CUDA error 59: Device-side assert triggered \| by Perez Ogayo \| Towards Data Science	If you happen to run into this error, you know how frustrating it can be. The most frustrating part, for me, was the lack of a clear, step-by-step solution to this problem. This could be caused by the fact that PyTorch is still relatively new. A little backstory ... I was working on the Stanford car dataset as part of ...	[ { "code": null, "e": 416, "s": 172, "text": "If you happen to run into this error, you know how frustrating it can be. The most frustrating part, for me, was the lack of a clear, step-by-step solution to this problem. This could be caused by the fact that PyTorch is still relatively new." }, { ...
Common Operations on Fuzzy Set with Example and Code - GeeksforGeeks	08 Mar, 2022 What is Fuzzy Set ? Fuzzy refers to something that is unclear or vague . Hence, Fuzzy Set is a Set where every key is associated with value, which is between 0 to 1 based on the certainty .This value is often called as degree of membership. Fuzzy Set is denoted with a Tilde Sign on top of the normal Set no...	[ { "code": null, "e": 24702, "s": 24674, "text": "\n08 Mar, 2022" }, { "code": null, "e": 24722, "s": 24702, "text": "What is Fuzzy Set ?" }, { "code": null, "e": 25017, "s": 24722, "text": "Fuzzy refers to something that is unclear or vague . Hence, Fuzzy Set ...
How to calculate the nth root of a number in JavaScript?	To calculate the end root of a number, use Math.abs() method. Here, we’re using the Match.pow method also. You can try to run the following code to calculate the square root of numbers in JavaScript − Live Demo <html> <head> <title>Calculate root</title> </head> <body> <script> function d...	[ { "code": null, "e": 1263, "s": 1062, "text": "To calculate the end root of a number, use Math.abs() method. Here, we’re using the Match.pow method also. You can try to run the following code to calculate the square root of numbers in JavaScript −" }, { "code": null, "e": 1273, "s": ...
Successful spark-submits for Python projects. \| by Kyle Jarvis \| Towards Data Science	TL; DR: The best way to learn is to do, and the best way to learn something hard is to do it in small steps. This is a guide for Python practitioners (probably data scientists) working on a package in an isolated development environment, who want to start successfully executing Spark jobs using that package on a cluste...	[ { "code": null, "e": 789, "s": 172, "text": "TL; DR: The best way to learn is to do, and the best way to learn something hard is to do it in small steps. This is a guide for Python practitioners (probably data scientists) working on a package in an isolated development environment, who want to start...
Apache Flume - Data Transfer In Hadoop	Big Data, as we know, is a collection of large datasets that cannot be processed using traditional computing techniques. Big Data, when analyzed, gives valuable results. Hadoop is an open-source framework that allows to store and process Big Data in a distributed environment across clusters of computers using simple pr...	[ { "code": null, "e": 2195, "s": 1857, "text": "Big Data, as we know, is a collection of large datasets that cannot be processed using traditional computing techniques. Big Data, when analyzed, gives valuable results. Hadoop is an open-source framework that allows to store and process Big Data in a d...
MTA Turnstile Data: Exploratory Data Analysis \| by Yingzhao Ouyang \| Towards Data Science	The first week of the Metis Data Science Bootcamp (Singapore Batch 4) has just concluded, and so far it’s been an interesting experience. Below I detail the first project that we did in that period, which was an exploratory data analysis of the MTA turnstile data set using Python paired with pandas and seaborn. Prepare...	[ { "code": null, "e": 485, "s": 172, "text": "The first week of the Metis Data Science Bootcamp (Singapore Batch 4) has just concluded, and so far it’s been an interesting experience. Below I detail the first project that we did in that period, which was an exploratory data analysis of the MTA turnst...
Raise x to the power n using Recursion in Java	The power of a number can be calculated using recursion. Here the number is x and it is raised to power n. A program that demonstrates this is given as follows: Live Demo public class Demo { static double pow(double x, int n) { if (n != 0) return (x * pow(x, n - 1)); else return 1; ...	[ { "code": null, "e": 1169, "s": 1062, "text": "The power of a number can be calculated using recursion. Here the number is x and it is raised to power n." }, { "code": null, "e": 1223, "s": 1169, "text": "A program that demonstrates this is given as follows:" }, { "code":...
C++ Program for Inorder Tree Traversal without Recursion	If a binary tree is traversed in-order, the left subtree is visited first, then the root and later the right sub-tree. The output the key in ascending order in in_order traversal. This is a C++ Program for Inorder Tree Traversal without Recursion. Begin Function inOrder(): Declare a stack s. Declare th...	[ { "code": null, "e": 1310, "s": 1062, "text": "If a binary tree is traversed in-order, the left subtree is visited first, then the root and later the right sub-tree. The output the key in ascending order in in_order traversal. This is a C++ Program for Inorder Tree Traversal without Recursion." },...
Python Arcade - Collision Detection - GeeksforGeeks	05 Oct, 2021 In this article, we will learn How we can add collisions in arcade games in Python. You can install the Arcade module using the below command: pip install arcade In this example, we are going to use the check_for_collision() function to add collision between 2 sprites. Syntax: arcade.check_for_collision( s...	[ { "code": null, "e": 23925, "s": 23897, "text": "\n05 Oct, 2021" }, { "code": null, "e": 24009, "s": 23925, "text": "In this article, we will learn How we can add collisions in arcade games in Python." }, { "code": null, "e": 24068, "s": 24009, "text": "You ca...
How can I remove a button or make it invisible in Android using Kotlin?	This example demonstrates how to remove a button or make it invisible in Android using Kotlin. 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. <?xml version="1.0" encoding="u...	[ { "code": null, "e": 1157, "s": 1062, "text": "This example demonstrates how to remove a button or make it invisible in Android using Kotlin." }, { "code": null, "e": 1286, "s": 1157, "text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all ...
How to use image preprocessing to improve the accuracy of Tesseract \| by Kaan Kuguoglu \| Towards Data Science	Previously, on How to get started with Tesseract, I gave you a practical quick-start tutorial on Tesseract using Python. It is a pretty simple overview, but it should help you get started with Tesseract and clear some hurdles I faced when I was in your shoes. Now, I’m keen on showing you a few more tricks and stuff you...	[ { "code": null, "e": 559, "s": 171, "text": "Previously, on How to get started with Tesseract, I gave you a practical quick-start tutorial on Tesseract using Python. It is a pretty simple overview, but it should help you get started with Tesseract and clear some hurdles I faced when I was in your sh...
Resolve Syntax error near “ORDER BY order DESC” in MySQL?	The word order is a reserved order in MySQL and you have used it in the query. To get rid of the syntax error, you need to use backticks(` `) around the order. The correct syntax is as follows − select *from yourTableName ORDER BY `order` DESC; Let us first create a table − mysql> create table DemoTable ( `order`...	[ { "code": null, "e": 1222, "s": 1062, "text": "The word order is a reserved order in MySQL and you have used it in the query. To get rid of the syntax error, you need to use backticks(` `) around the order." }, { "code": null, "e": 1257, "s": 1222, "text": "The correct syntax is ...
hash command in Linux with examples - GeeksforGeeks	21 May, 2019 hash command in Linux system is the built-in command of bash which is used to maintain a hash table of recently executed programs. It remembers and shows the program locations. It will give the full pathname of each command name. Syntax: hash [-lr] [-p pathname] [-dt] [name ...] Options: -d: This is used t...	[ { "code": null, "e": 24015, "s": 23987, "text": "\n21 May, 2019" }, { "code": null, "e": 24245, "s": 24015, "text": "hash command in Linux system is the built-in command of bash which is used to maintain a hash table of recently executed programs. It remembers and shows the progr...
C++ Program to check if input is an integer or a string	Given with an input by the user and the task is to check whether the given input is an integer or a string. Integer can be any combination of digits between 0 -9 and string can be any combination excluding 0 – 9. Input-: 123 Output-: 123 is an integer Input-: Tutorials Point Output-: Tutorials Point is a string Approac...	[ { "code": null, "e": 1170, "s": 1062, "text": "Given with an input by the user and the task is to check whether the given input is an integer or a string." }, { "code": null, "e": 1275, "s": 1170, "text": "Integer can be any combination of digits between 0 -9 and string can be an...
Cypress - Assertions	Cypress has more than one type of assertions obtained from various libraries like Mocha,Chai, and so on. The assertion types are explicit and implicit. If an assertion is applicable to the object obtained from the parent command in a chain, it is known as the implicit assertion. The popular implicit assertions include ...	[ { "code": null, "e": 2649, "s": 2497, "text": "Cypress has more than one type of assertions obtained from various libraries like Mocha,Chai, and so on. The assertion types are explicit and implicit." }, { "code": null, "e": 2831, "s": 2649, "text": "If an assertion is applicable ...
CakePHP - Routing	In this chapter, we are going to learn the following topics related to routing − Introduction to Routing Connecting Routes Passing Arguments to Routes Generating urls Redirect urls In this section, we will see how you can implement routes, how you can pass arguments from URL to controller’s action, how you can generate...	[ { "code": null, "e": 2323, "s": 2242, "text": "In this chapter, we are going to learn the following topics related to routing −" }, { "code": null, "e": 2347, "s": 2323, "text": "Introduction to Routing" }, { "code": null, "e": 2365, "s": 2347, "text": "Connec...
Python 3 - MySQL Database Access	The Python standard for database interfaces is the Python DB-API. Most Python database interfaces adhere to this standard. You can choose the right database for your application. Python Database API supports a wide range of database servers such as − GadFly mSQL MySQL PostgreSQL Microsoft SQL Server 2000 Informix Inter...	[ { "code": null, "e": 2463, "s": 2340, "text": "The Python standard for database interfaces is the Python DB-API. Most Python database interfaces adhere to this standard." }, { "code": null, "e": 2591, "s": 2463, "text": "You can choose the right database for your application. Pyt...
Macroeconomic & Financial Factors and Ordinary least Square Regression \| by Sarit Maitra \| Towards Data Science	Arbitrage Pricing Theory is represented as a multivariate regression model with across‐equations restrictions. It is a multi-factor asset pricing model that holds that an asset’s returns can be forecasted with the linear relationship of an asset’s expected returns and the macro-economic variables that capture systemati...	[ { "code": null, "e": 500, "s": 172, "text": "Arbitrage Pricing Theory is represented as a multivariate regression model with across‐equations restrictions. It is a multi-factor asset pricing model that holds that an asset’s returns can be forecasted with the linear relationship of an asset’s expecte...