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C# Program that Demonstrates Exception Handling For Invalid TypeCasting in UnBoxing - GeeksforGeeks	01 Nov, 2021 Exception handling is used to handle the errors in the program. Or we can say that an exception is an event that occurs during the execution of a program that is unexpected by the program code. The actions to be performed in case of the occurrence of an exception are not known to the program. In this situa...	[ { "code": null, "e": 24302, "s": 24274, "text": "\n01 Nov, 2021" }, { "code": null, "e": 24965, "s": 24302, "text": "Exception handling is used to handle the errors in the program. Or we can say that an exception is an event that occurs during the execution of a program that is u...
Python - HTTP Authentication	Authentication is the process of determining if the request has come from a valid user who has the required privileges to use the system. In the world of computer networking this is a very vital requirement as many systems keep interacting with each other and proper mechanism needs to ensure that only valid interaction...	[ { "code": null, "e": 2679, "s": 2326, "text": "Authentication is the process of determining if the request has come from a valid user who has the required privileges to use the system. In the world of computer networking this is a very vital requirement as many systems keep interacting with each oth...
Converting the Slides of a PPT into Images using Java - GeeksforGeeks	15 Jul, 2021 To convert PowerPoint slides to images, multiple packages are required like, java.awt because It contains all the classes for creating user interfaces and for painting graphics and images, java.io because It provides a set of input streams and a set of output streams used to read and write data to files or...	[ { "code": null, "e": 23581, "s": 23553, "text": "\n15 Jul, 2021" }, { "code": null, "e": 24026, "s": 23581, "text": "To convert PowerPoint slides to images, multiple packages are required like, java.awt because It contains all the classes for creating user interfaces and for pain...
Spring Boot JPA - Unit Test Repository	To test a Repository, we need the following annotation and classes − @ExtendWith(SpringExtension.class) − Mark the class to run as test case using SpringExtension class. @ExtendWith(SpringExtension.class) − Mark the class to run as test case using SpringExtension class. @SpringBootTest(classes = SprintBootH2Application...	[ { "code": null, "e": 2047, "s": 1978, "text": "To test a Repository, we need the following annotation and classes −" }, { "code": null, "e": 2148, "s": 2047, "text": "@ExtendWith(SpringExtension.class) − Mark the class to run as test case using SpringExtension class." }, { ...
How to extract numbers from cell array in MATLAB? - GeeksforGeeks	23 Jul, 2021 In this article, we are going to discuss the extraction of numbers from the cell array with the help of regexp(), str2double(), cat(), and isletter() functions. A cell array is nothing but a data type having indexed data containers called cells, where each cell contains any type of data. It mainly contains...	[ { "code": null, "e": 24255, "s": 24227, "text": "\n23 Jul, 2021" }, { "code": null, "e": 24416, "s": 24255, "text": "In this article, we are going to discuss the extraction of numbers from the cell array with the help of regexp(), str2double(), cat(), and isletter() functions." ...
Impala - Shell	In the earlier chapters, we have seen the installation of Impala using cloudera and its architecture. Impala shell (command prompt) Hue (User Interface) ODBC and JDBC (Third party libraries) This chapter explains how to start Impala Shell and the various options of the shell. The commands of Impala shell are classifie...	[ { "code": null, "e": 2388, "s": 2285, "text": "In the earlier chapters, we have seen the installation of Impala using cloudera \nand its architecture." }, { "code": null, "e": 2418, "s": 2388, "text": "Impala shell (command prompt)" }, { "code": null, "e": 2439, "...
Design a calendar using HTML and CSS - GeeksforGeeks	27 Jan, 2021 In this article, we will create a calendar using HTML, and CSS. First, we have to know a little about HTML. If someone does not know HTML and CSS, they will not be able to make the calendar better. The main focus of this article is on HTML tags and the way we are going to use CSS. Approach: First we will b...	[ { "code": null, "e": 25376, "s": 25348, "text": "\n27 Jan, 2021" }, { "code": null, "e": 25658, "s": 25376, "text": "In this article, we will create a calendar using HTML, and CSS. First, we have to know a little about HTML. If someone does not know HTML and CSS, they will not be...
Given n line segments, find if any two segments intersect - GeeksforGeeks	01 Sep, 2021 We have discussed the problem to detect if two given line segments intersect or not. In this post, we extend the problem. Here we are given n line segments and we need to find out if any two line segments intersect or not. Naive Algorithm A naive solution to solve this problem is to check every pair of lin...	[ { "code": null, "e": 34516, "s": 34488, "text": "\n01 Sep, 2021" }, { "code": null, "e": 37099, "s": 34516, "text": "We have discussed the problem to detect if two given line segments intersect or not. In this post, we extend the problem. Here we are given n line segments and we ...
String split(String regex, int limit) Method	This method has two variants and splits this string around matches of the given regular expression. Here is the syntax of this method − public String[] split(String regex, int limit) Here is the detail of parameters − regex − the delimiting regular expression. regex − the delimiting regular expression. limit − the res...	[ { "code": null, "e": 2477, "s": 2377, "text": "This method has two variants and splits this string around matches of the given regular expression." }, { "code": null, "e": 2513, "s": 2477, "text": "Here is the syntax of this method −" }, { "code": null, "e": 2561, ...
Achieving world-class results using the new fastai library \| by Aayush Agrawal \| Towards Data Science	I am currently doing a fast.ai Live MOOC called “Practical Deep learning for Coders” which will be publically available in January 2019 on fast.ai website. The following code is based on lesson 1 from that course. I will be using fastai V1 library which sits on top of Pytorch 1.0. The fastai library provides many usefu...	[ { "code": null, "e": 764, "s": 172, "text": "I am currently doing a fast.ai Live MOOC called “Practical Deep learning for Coders” which will be publically available in January 2019 on fast.ai website. The following code is based on lesson 1 from that course. I will be using fastai V1 library which s...
Convert JSON to another JSON format with recursion JavaScript	Suppose, we have the following JSON object − const obj = { "context": { "device": { "localeCountryCode": "AX", "datetime": "3047-09-29T07:09:52.498Z" }, "currentLocation": { "country": "KM", "lon": -78789486, } } }; We are required to write a JavaScript ...	[ { "code": null, "e": 1107, "s": 1062, "text": "Suppose, we have the following JSON object −" }, { "code": null, "e": 1344, "s": 1107, "text": "const obj = {\n \"context\": {\n \"device\": {\n \"localeCountryCode\": \"AX\",\n \"datetime\": \"3047-09-29T07:09...
Python Blockchain - Adding Blocks	Each miner will pick up the transactions from a previously created transaction pool. To track the number of messages already mined, we have to create a global variable − last_transaction_index = 0 We will now have our first miner adding a block to the blockchain. To add a new block, we first create an instance of the ...	[ { "code": null, "e": 2165, "s": 1995, "text": "Each miner will pick up the transactions from a previously created transaction pool. To track the number of messages already mined, we have to create a global variable −" }, { "code": null, "e": 2193, "s": 2165, "text": "last_transac...
Machine Learning Basics: K-Nearest Neighbors Classification \| by Gurucharan M K \| Towards Data Science	In the previous stories, I had given an explanation of the program for implementation of various Regression models. Also, I had described the implementation of the Logistic Regression model. In this article, we shall see the algorithm of the K-Nearest Neighbors or KNN Classification along with a simple example. The K-N...	[ { "code": null, "e": 485, "s": 172, "text": "In the previous stories, I had given an explanation of the program for implementation of various Regression models. Also, I had described the implementation of the Logistic Regression model. In this article, we shall see the algorithm of the K-Nearest Nei...
What is the difference between getWindowHandle() and getWindowHandles() methods in Selenium WebDriver?	There are difference between getWindowHandle() and getWindowHandles() methods in Selenium webdriver. The getWindowHandles and getWindowHandle methods can be used to handle child windows. The getWindowHandles method is used to store all the opened window handles in the Set data structure. The getWindowHandle method is u...	[ { "code": null, "e": 1351, "s": 1062, "text": "There are difference between getWindowHandle() and getWindowHandles() methods in Selenium webdriver. The getWindowHandles\nand getWindowHandle methods can be used to handle child windows. The getWindowHandles method is used to store all the opened windo...
Solidity - Special Variables	Special variables are globally available variables and provides information about the blockchain. Following is the list of special variables − blockhash(uint blockNumber) returns (bytes32) Hash of the given block - only works for 256 most recent, excluding current, blocks. block.coinbase (address payable) Current block...	[ { "code": null, "e": 2698, "s": 2555, "text": "Special variables are globally available variables and provides information about the blockchain. Following is the list of special variables −" }, { "code": null, "e": 2744, "s": 2698, "text": "blockhash(uint blockNumber) returns (by...
CSS Buttons - Social Buttons Usage	Social Buttons library is a set of CSS Buttons made in pure CSS and are based on Bootstrap and Font Awesome. To load the bootstrap-social.css library, download the bootstrap-social.css from github and paste the following line in the <head> section of the webpage. <head> <link rel = "stylesheet" href = "bootstrap-soc...	[ { "code": null, "e": 2007, "s": 1898, "text": "Social Buttons library is a set of CSS Buttons made in pure CSS and are based on Bootstrap and Font Awesome." }, { "code": null, "e": 2162, "s": 2007, "text": "To load the bootstrap-social.css library, download the bootstrap-social.c...
Abstraction in R Programming - GeeksforGeeks	11 Nov, 2020 People who’ve been using the R language for any period of time have likely grown to be conversant in passing features as arguments to other functions. However, people are a whole lot much less probably to go back functions from their personal custom code. This is simply too horrific because doing so can op...	[ { "code": null, "e": 28679, "s": 28651, "text": "\n11 Nov, 2020" }, { "code": null, "e": 29269, "s": 28679, "text": "People who’ve been using the R language for any period of time have likely grown to be conversant in passing features as arguments to other functions. However, peo...
Kotlin \| Filtering Collections	21 Feb, 2022 In Kotlin, filtering is a prominent task of collection processing. The filtering conditions are defined by predicates – lambda functions that take a collection element and return true when the given element matches the predicate, and false means it doesn’t match the predicate. There are standard library ...	[ { "code": null, "e": 52, "s": 24, "text": "\n21 Feb, 2022" }, { "code": null, "e": 332, "s": 52, "text": "In Kotlin, filtering is a prominent task of collection processing. The filtering conditions are defined by predicates – lambda functions that take a collection element and re...
Rearrange an array in order – smallest, largest, 2nd smallest, 2nd largest, ..	27 Jun, 2022 Given an array of integers, the task is to print the array in the order – smallest number, the Largest number, 2nd smallest number, 2nd largest number, 3rd smallest number, 3rd largest number, and so on..... Examples: Input : arr[] = [5, 8, 1, 4, 2, 9, 3, 7, 6] Output :arr[] = {1, 9, 2, 8, 3, 7, 4, 6, 5}...	[ { "code": null, "e": 52, "s": 24, "text": "\n27 Jun, 2022" }, { "code": null, "e": 260, "s": 52, "text": "Given an array of integers, the task is to print the array in the order – smallest number, the Largest number, 2nd smallest number, 2nd largest number, 3rd smallest number, 3...
Noise removal using Median filter in C++	18 Jan, 2022 Median filtering is a nonlinear process useful in reducing impulsive, or salt-and-pepper noise. The median filter is also used to preserve edge properties while reducing the noise. Also, the smoothing techniques, like Gaussian blur is also used to reduce noise but it can’t preserve the edge properties. The...	[ { "code": null, "e": 52, "s": 24, "text": "\n18 Jan, 2022" }, { "code": null, "e": 460, "s": 52, "text": "Median filtering is a nonlinear process useful in reducing impulsive, or salt-and-pepper noise. The median filter is also used to preserve edge properties while reducing the ...
Proof that Hamiltonian Path is NP-Complete	01 Jun, 2022 Prerequisite : NP-Completeness The class of languages for which membership can be decided quickly fall in the class of P and The class of languages for which membership can be verified quickly fall in the class of NP(stands for problem solved in Non-deterministic Turing Machine in polynomial time). In stra...	[ { "code": null, "e": 54, "s": 26, "text": "\n01 Jun, 2022" }, { "code": null, "e": 481, "s": 54, "text": "Prerequisite : NP-Completeness The class of languages for which membership can be decided quickly fall in the class of P and The class of languages for which membership can b...
Print Right View of a Binary Tree	11 Jun, 2022 Given a Binary Tree, print Right view of it. Right view of a Binary Tree is set of nodes visible when tree is visited from Right side. Right view of following tree is 1 3 7 8 1 / \ 2 3 / \ / \ 4 5 6 7 \ 8 The probl...	[ { "code": null, "e": 54, "s": 26, "text": "\n11 Jun, 2022" }, { "code": null, "e": 190, "s": 54, "text": "Given a Binary Tree, print Right view of it. Right view of a Binary Tree is set of nodes visible when tree is visited from Right side. " }, { "code": null, "e": 3...
DetailView – Class Based Views Django	22 Jan, 2020 Detail View refers to a view (logic) to display one instances of a table in the database. We have already discussed basics of Detail View in Detail View – Function based Views Django. Class-based views provide an alternative way to implement views as Python objects instead of functions. They do not replace...	[ { "code": null, "e": 53, "s": 25, "text": "\n22 Jan, 2020" }, { "code": null, "e": 466, "s": 53, "text": "Detail View refers to a view (logic) to display one instances of a table in the database. We have already discussed basics of Detail View in Detail View – Function based View...
Convert HTML table into CSV file in python	21 Apr, 2020 CSV file is a Comma Separated Value file that uses a comma to separate values. CSV file is a useful thing in today’s world when we are talking about machine learning, data handling, and data visualization. In this article, we will discuss how to convert an HTML table into a CSV file. Example: Suppose HTML ...	[ { "code": null, "e": 54, "s": 26, "text": "\n21 Apr, 2020" }, { "code": null, "e": 339, "s": 54, "text": "CSV file is a Comma Separated Value file that uses a comma to separate values. CSV file is a useful thing in today’s world when we are talking about machine learning, data ha...
LMN – Digital Electronics	28 Jun, 2021 See Last Minute Notes on all subjects here.We will discuss the important key points useful for GATE exams in summarized form. For details you may refer this. Logic Gates: Note: NAND and NOR gates are called UNIVERSAL GATES because all other gates can be constructed from any of them. K-map example of 3 vari...	[ { "code": null, "e": 54, "s": 26, "text": "\n28 Jun, 2021" }, { "code": null, "e": 212, "s": 54, "text": "See Last Minute Notes on all subjects here.We will discuss the important key points useful for GATE exams in summarized form. For details you may refer this." }, { "c...
Python \| Pandas.CategoricalDtype()	10 Mar, 2022 pandas.api.types.CategoricalDtype(categories = None, ordered = None) : This class is useful for specifying the type of Categorical data independent of the values, with categories and orderness. Parameters- categories : [index like] Unique categorization of the categories. ordered : [boolean] If false, th...	[ { "code": null, "e": 28, "s": 0, "text": "\n10 Mar, 2022" }, { "code": null, "e": 224, "s": 28, "text": "pandas.api.types.CategoricalDtype(categories = None, ordered = None) : This class is useful for specifying the type of Categorical data independent of the values, with categor...
How to convert an object to string using JavaScript?	23 May, 2019 Below are the methods to convert different objects to string.Method 1: Using the function String()The String() function converts the value of an object to a string.Syntax: String(object) Parameter: JavaScript Object Example : <script> var bool_to_s1 = Boolean(0);var bool_to_s2 = Boolean(1);var num_to_s = 1...	[ { "code": null, "e": 28, "s": 0, "text": "\n23 May, 2019" }, { "code": null, "e": 200, "s": 28, "text": "Below are the methods to convert different objects to string.Method 1: Using the function String()The String() function converts the value of an object to a string.Syntax:" ...
How to create texture background using CSS ?	18 Jun, 2020 Introduction: We can use CSS property to texture the background of web page by using an image editor to cut out a portion of the background. Apply CSS background-repeat property to make the small image fill the area where it is used. CSS provides many styling properties of background including coloring the...	[ { "code": null, "e": 28, "s": 0, "text": "\n18 Jun, 2020" }, { "code": null, "e": 478, "s": 28, "text": "Introduction: We can use CSS property to texture the background of web page by using an image editor to cut out a portion of the background. Apply CSS background-repeat proper...
Partial Methods in C#	23 Jan, 2019 C# contains a special method is known as a partial method, which contains declaration part in one partial class and definition part in another partial class or may contain both declaration and definition in the same partial class.Basically, partial methods exist in the partial class, or in the struct. A pa...	[ { "code": null, "e": 52, "s": 24, "text": "\n23 Jan, 2019" }, { "code": null, "e": 640, "s": 52, "text": "C# contains a special method is known as a partial method, which contains declaration part in one partial class and definition part in another partial class or may contain bo...
Program to find number of solutions in Quadratic Equation	22 Apr, 2021 Given an equation with value a, b, and c, where a and b is any value and c is constant, find how many solutions thus this quadratic equation have?Examples: Input : Output : 2 solutions Input : Output : no solution Solution: To check whether the equation has a solution or not, quadratic formula for disc...	[ { "code": null, "e": 28, "s": 0, "text": "\n22 Apr, 2021" }, { "code": null, "e": 186, "s": 28, "text": "Given an equation with value a, b, and c, where a and b is any value and c is constant, find how many solutions thus this quadratic equation have?Examples: " }, { "co...
Is Learning Rate Useful in Artificial Neural Networks? \| by Ahmed Gad \| Towards Data Science	This article will help you understand why we need the learning rate and whether it is useful or not for training an artificial neural network. Using a very simple Python code for a single layer perceptron, the learning rate value will get changed to catch its idea. An obstacle for newbies in artificial neural networks ...	[ { "code": null, "e": 438, "s": 172, "text": "This article will help you understand why we need the learning rate and whether it is useful or not for training an artificial neural network. Using a very simple Python code for a single layer perceptron, the learning rate value will get changed to catch...
Detect cycle in the graph using degrees of nodes of graph - GeeksforGeeks	02 Jul, 2021 Given a graph, the task is to detect a cycle in the graph using degrees of the nodes in the graph and print all the nodes that are involved in any of the cycles. If there is no cycle in the graph then print -1. Examples: Input: Output: 0 1 2 Approach: Recursively remove all vertices of degree 1. This c...	[ { "code": null, "e": 25010, "s": 24982, "text": "\n02 Jul, 2021" }, { "code": null, "e": 25221, "s": 25010, "text": "Given a graph, the task is to detect a cycle in the graph using degrees of the nodes in the graph and print all the nodes that are involved in any of the cycles. I...
Python program to count the number of characters in a String - GeeksforGeeks	01 Oct, 2020 Given a String. The task is to return the number of characters in the string. Examples: Input : test_str = ‘geeksforgeeks !!$* best 4 all Geeks 10-0’ Output : 25Explanation : Only alphabets, when counted are 25 Input : test_str = ‘geeksforgeeks !!$* best for all Geeks 10—0’ Output : 27Explanation : Onl...	[ { "code": null, "e": 25531, "s": 25503, "text": "\n01 Oct, 2020" }, { "code": null, "e": 25609, "s": 25531, "text": "Given a String. The task is to return the number of characters in the string." }, { "code": null, "e": 25619, "s": 25609, "text": "Examples:" ...
BlackRock Interview Experience (On-campus) - GeeksforGeeks	09 Sep, 2020 BlackRock was one of the Super-Dream companies that visited VIT. Eligibility criteria were 60% or CGPA 6 in Xth, XIIth, and pursuing a degree with no standing arrears. 1000 students(Company was open to all branches) were short-listed for the online test for tech. profile(I would be describing the process f...	[ { "code": null, "e": 26321, "s": 26293, "text": "\n09 Sep, 2020" }, { "code": null, "e": 26684, "s": 26321, "text": "BlackRock was one of the Super-Dream companies that visited VIT. Eligibility criteria were 60% or CGPA 6 in Xth, XIIth, and pursuing a degree with no standing arre...
Ruby \| Array uniq() function - GeeksforGeeks	06 Dec, 2019 Array#uniq() : uniq() is a Array class method which returns a new array by removing duplicate values in the array. Syntax: Array.uniq() Parameter: Array Return: a new array by removing duplicate values in the array Example #1 : # Ruby code for uniq() method # declaring arraya = [18, 22, 33, nil, 5, 6] # ...	[ { "code": null, "e": 24955, "s": 24927, "text": "\n06 Dec, 2019" }, { "code": null, "e": 25070, "s": 24955, "text": "Array#uniq() : uniq() is a Array class method which returns a new array by removing duplicate values in the array." }, { "code": null, "e": 25091, ...
How to Implement Shapeable ImageView in Android? - GeeksforGeeks	20 Dec, 2021 In Android, ShapeableImageView is used to change the shape of your image to circle, diamond, etc. Also, you can set a corner radius to your ImageView. You can do much more by using this ShapeableImageView with minimal code. So in this article, we are going to make a ShapableImageView in android. By impleme...	[ { "code": null, "e": 26381, "s": 26353, "text": "\n20 Dec, 2021" }, { "code": null, "e": 26875, "s": 26381, "text": "In Android, ShapeableImageView is used to change the shape of your image to circle, diamond, etc. Also, you can set a corner radius to your ImageView. You can do m...
Find Nth term of series 1, 4, 15, 72, 420... - GeeksforGeeks	14 May, 2021 Given a number N. The task is to write a program to find the Nth term in the below series: 1, 4, 15, 72, 420... Examples: Input: 3 Output: 15 For N = 3, we know that the factorial of 3 is 6 Nth term = 6*(3+2)/2 = 15 Input: 6 Output: 2880 For N = 6, we know that the factorial of 6 is 720 Nth te...	[ { "code": null, "e": 25445, "s": 25417, "text": "\n14 May, 2021" }, { "code": null, "e": 25537, "s": 25445, "text": "Given a number N. The task is to write a program to find the Nth term in the below series: " }, { "code": null, "e": 25558, "s": 25537, "text":...
Simple Multithreaded Download Manager in Python - GeeksforGeeks	25 Aug, 2016 Introduction A Download Manager is basically a computer program dedicated to the task of downloading stand alone files from internet. Here, we are going to create a simple Download Manager with the help of threads in Python. Using multi-threading a file can be downloaded in the form of chunks simultaneousl...	[ { "code": null, "e": 26299, "s": 26271, "text": "\n25 Aug, 2016" }, { "code": null, "e": 26312, "s": 26299, "text": "Introduction" }, { "code": null, "e": 26756, "s": 26312, "text": "A Download Manager is basically a computer program dedicated to the task of d...
How to set the overflow property to scroll in CSS ? - GeeksforGeeks	03 Jun, 2021 In this article, we will see how to set the overflow property to scroll in CSS. The overflow property is used to control the big content. It tells what to do when an element’s content is too big to fit in the specified area. When the overflow property is set to scroll, the overflow is clipped, but a scroll...	[ { "code": null, "e": 26621, "s": 26593, "text": "\n03 Jun, 2021" }, { "code": null, "e": 26958, "s": 26621, "text": "In this article, we will see how to set the overflow property to scroll in CSS. The overflow property is used to control the big content. It tells what to do when ...
How to create a Triangle Correlation Heatmap in seaborn - Python? - GeeksforGeeks	29 Jul, 2021 Seaborn is a Python library that is based on matplotlib and is used for data visualization. It provides a medium to present data in a statistical graph format as an informative and attractive medium to impart some information. A heatmap is one of the components supported by seaborn where variation in relat...	[ { "code": null, "e": 27981, "s": 27953, "text": "\n29 Jul, 2021" }, { "code": null, "e": 28491, "s": 27981, "text": "Seaborn is a Python library that is based on matplotlib and is used for data visualization. It provides a medium to present data in a statistical graph format as a...