2024 W3resource - 4. Write a C program to print the following characters in reverse. Test Characters: 'X', 'M', 'L'. Expected Output: The reverse of XML is LMX. Click me to see the solution. 5. Write a C program to compute the perimeter and area of a rectangle with a height of 7 inches and width of 5 inches. Expected Output:

 
Dec 8, 2023 · C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. C was originally developed by Dennis Ritchie between 1969 and 1973 at Bell Labs. . W3resource

C Queue [13 exercises with solution] [An editor is available at the bottom of the page to write and execute the scripts.Go to the editor]. From Wikipedia - In computer science, a queue is a collection of entities that are maintained in a sequence and can be modified by the addition of entities at one end of the sequence and the removal of …Web development tutorials on HTML, CSS, JS, PHP, SQL, MySQL, PostgreSQL, MongoDB, JSON and more. Aug 19, 2022 · Python has a built-in string class named "str" with many useful features. String literals can be enclosed by either single or double, although single quotes are more commonly used. Backslash escapes work the usual way within both single and double quoted literals -- e.g. \' \". A double quoted string literal can contain single quotes without ... C For Loop [61 exercises with solution] [ An editor is available at the bottom of the page to write and execute the scripts. Go to the editor] 1. Write a program in C to display the first 10 natural numbers. 2. Write a C program to compute the sum of the first 10 natural numbers.w3resource. Python: Sort (ascending and descending) a dictionary by value Last update on November 06 2023 08:04:59 (UTC/GMT +8 hours) Python dictionary: Exercise-1 with Solution. Write a Python program to sort (ascending and descending) a dictionary by value. Sample Solution-1: Python Code: # Import the 'operator' module, …Go to the editor] 1. Write a C program to accept two integers and check whether they are equal or not. Test Data : 15 15. Expected Output : Number1 and Number2 are equal. Click me to see the solution. 2. Write a C program to check whether a given number is even or odd.May 24, 2023 · C++ Array [30 exercises with solution] [ An editor is available at the bottom of the page to write and execute the scripts. Go to the editor] 1. Write a C++ program to find the largest element of a given array of integers. 2. Write a C++ program to find the largest three elements in an array. Write an if-else in a single line of code. #create a integer n = 150 print (n) #if n is greater than 500, n is multiplied by 7, otherwise n is divided by 7 result = n * 7 if n > 500 else n / 7 print (result) Output: 150 21.428571428571427.Python Code: # Define a function 'third_largest' that takes a list of 'nums' as input. def third_largest (nums): # Convert the 'nums' list into a set to remove duplicates. nums = set (nums) # Check if the length of 'nums' is less than 3. If so, return None since it doesn't have a third largest element. if len (nums) < 3: return None # Convert ...Write a C program to get the C version you are using. : This line includes the standard input-output library, which is necessary for using "printf". int main (int argc, char** argv): This is the main function with command-line arguments argc and argv. However, in this code, these arguments are not used. #if __STDC_VERSION__ >= 201710L checks if ...This is the first article of w3resource's Java programming tutorial. The aim of this tutorial is to make beginners conversant with Java programming language. Introduction to Java programming language. Today Java programming language is one of the most popular programming languages which is used in critical applications like stock market …W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.C# Sharp Basic Exercises. SQL COUNT () with distinct. JavaScript String Exercises. JavaScript HTML Form Validation. Java Collection Exercises. SQL COUNT () function. SQL Inner Join. This work is licensed under a Creative Commons Attribution 4.0 International License. ©w3resource.com 2011-2023.Practice with solution of exercises on SQL soccer database, INNER JOIN, LEFT JOIN, RIGHT JOIN, RIGHT OUTER JOIN, LEFT OUTER JOIN, FULL OUTER JOIN, SELF JOIN, CROSS JOIN, EQUI JOIN, NON EQUI JOIN, subqueries on soccer database, and more from w3resource.Aug 19, 2022 · Python has a built-in string class named "str" with many useful features. String literals can be enclosed by either single or double, although single quotes are more commonly used. Backslash escapes work the usual way within both single and double quoted literals -- e.g. \' \". A double quoted string literal can contain single quotes without ... Step2 : Compile the abc.java file using “javac” command or eclipse will compile it automatically. Step3 : Byte Code (abc.class) will be generated on disk. Step4 : This byte code can run on any platform or device having JVM (java.exe convert byte code in machine language) Let’s get familiar with various terminologies used by java programmers.Python Lambda [52 exercises with solution] [An editor is available at the bottom of the page to write and execute the scripts.Go to the editor] . 1. Write a Python program to create a lambda function that adds 15 to a given number passed in as an argument, also create a lambda function that multiplies argument x with argument y and …Previous: Write a Python program to get a string made of the first 2 and the last 2 chars from a given a string. If the string length is less than 2, return instead of the empty string. Next: Write a Python program to get a single string from two given strings, separated by a space and swap the first two characters of each string.Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.You may read our SQL Subqueries tutorial before solving the following exercises. [ An editor is available at the bottom of the page to write and execute the scripts. Go to the editor] 1. From the following tables, write a SQL query to find all the orders issued by the salesman 'Paul Adam'. Return ord_no, purch_amt, ord_date, customer_id and ...What is SQL? SQL stands for Structured Query Language and it is an ANSI standard computer language for accessing and manipulating database systems. It is used for managing data in relational database management system which stores data in the form of tables and relationship between data is also stored in the form of tables. SQL …Nov 21, 2023 · Adventureworks Database Exercises. C# Sharp Basic Exercises. SQL COUNT () with distinct. JavaScript String Exercises. JavaScript HTML Form Validation. Java Collection Exercises. SQL COUNT () function. SQL Inner Join. This work is licensed under a Creative Commons Attribution 4.0 International License. Aug 19, 2022 · The INNER JOIN selects all rows from both participating tables as long as there is a match between the columns. An SQL INNER JOIN is same as JOIN clause, combining rows from two or more tables. An inner join of A and B gives the result of A intersect B, i.e. the inner part of a Venn diagram intersection. Inner joins use a comparison operator to ... W3resource. 361 likes · 9 talking about this. Founded in October 2008, w3resource.com has been live since 7th February 2011.Excel Exercise: Complete the Excel formula: 1+1 Submit Answer » Start the Exercise My Learning Track your progress with the free "My Learning" program here at W3Schools. …1. Write a Python function that takes a sequence of numbers and determines whether all the numbers are different from each other. Click me to see the sample solution. 2. Write a Python program that creates all possible strings using the letters 'a', 'e', 'i', 'o', and 'I'. Ensure that each character is used only once.May 19, 2023 · Go to the editor] 1. Write a C program to accept two integers and check whether they are equal or not. Test Data : 15 15. Expected Output : Number1 and Number2 are equal. Click me to see the solution. 2. Write a C program to check whether a given number is even or odd. Jun 5, 2023 · SQL [55 exercises with solution] You may read our SQL Subqueries tutorial before solving the following exercises. [ An editor is available at the bottom of the page to write and execute the scripts. Go to the editor] 1. From the following table, write a SQL query to find those employees who receive a higher salary than the employee with ID 163. Excel Exercise: Complete the Excel formula: 1+1 Submit Answer » Start the Exercise My Learning Track your progress with the free "My Learning" program here at W3Schools. …The above C code prompts the user to input 10 integers into an array named arr, and then prints out the elements of the array. The first printf statement asks the user to input 10 elements into the array, and the for loop runs from i=0 to i<10, prompting the user to enter each element using scanf, and storing each input in the corresponding ...Python String Exercises, Practice, Solution - Improve your Python string handling skills with these 113 exercises, each with a sample solution. Learn how to calculate string length, count character frequencies, extract substrings, replace characters, swap characters, and more. You'll also learn how to manipulate strings in various ways. …List of SQL Exercises. SQL Retrieve data from tables [33 Exercises] SQL Boolean and Relational operators [12 Exercises] SQL Wildcard and Special operators [22 Exercises] SQL Aggregate Functions [25 Exercises] SQL Formatting query output [10 Exercises] SQL Quering on Multiple Tables [8 Exercises] FILTERING and SORTING on HR Database [38 ...W3Resource is another online tutorial website to learn the Java programming language. The best way to learn is practice. This website provides some …May 24, 2023 · Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements. Aug 19, 2022 · What is HTML? HTML stands for Hyper Text Markup Language is used to create web pages as well as other types of documents viewable in a web browser. HTML is a standard specified and maintained by World Wide Web Consortium. From its invention, HTML has evolved through different versions. Present version of HTML is HTML 4.01. Practice with solution of exercises on SQL soccer database, INNER JOIN, LEFT JOIN, RIGHT JOIN, RIGHT OUTER JOIN, LEFT OUTER JOIN, FULL OUTER JOIN, SELF JOIN, CROSS JOIN, EQUI JOIN, NON EQUI JOIN, subqueries on soccer database, and more from w3resource.NumPy Exercises, Practice, Solution: NumPy is a Python package providing fast, flexible, and expressive data structures designed to make working with relational or labeled data both easy and intuitive.Date validation. It is very important to validate the data supplied by the user through a form before you process it. Among various kind of data validation, validation of date is one.Learn Structured Query Language. The w3resource SQL Tutorial is ideal for SQL beginners, including those without prior experience. Our tutorial offers in-depth guidance, covering everything from basic queries like "SELECT * FROM table_name" to complex operations involving multiple tables. It's a comprehensive resource for both novices and those ...Nov 21, 2023 · PHP Exercises, Practice, Solution: PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. SQL FULL OUTER JOIN. Join a table to itself. SQL SELF JOIN. Joining tables through referential integrity. Joining tables with group by and order by. Join two tables related by a single column primary key or foriegn key pair. Join two tables related by a composite primary key or foriegn key pair. Join three or more tables based on a parent-child ...Previous: Write a Python program to get a string made of the first 2 and the last 2 chars from a given a string. If the string length is less than 2, return instead of the empty string. Next: Write a Python program to get a single string from two given strings, separated by a space and swap the first two characters of each string.C Basic Declarations and Expressions: Exercise-3 with Solution. Write a C program to print a block F using the hash (#), where the F has a height of six characters and width of five and four characters. And also print a very large 'C'.Go to the editor] 1. Write a Python program to read each row from a given csv file and print a list of strings. Click me to see the sample solution. 2. Write a Python program to read a given CSV file having tab delimiter. Click me to see the sample solution. 3. Write a Python program to read a given CSV file as a list.Feb 1, 2023 · What is SQL? SQL stands for Structured Query Language and it is an ANSI standard computer language for accessing and manipulating database systems. It is used for managing data in relational database management system which stores data in the form of tables and relationship between data is also stored in the form of tables. SQL statements are ... See the Pen javascript-common-editor by w3resource (@w3resource) on CodePen. Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page. Follow us …Aug 19, 2022 · Features of the w3resource JavaScript Tutorial. In this series of tutorials, we have covered JavaScript 1.5+ in detail. While creating this, we have taken care that learners can master the basics of JavaScript. Here is a list of features we have included in all of the chapters : We have started with a clear and simple description. Aug 19, 2022 · For MySQL, create a database first, select that and then import the given txt file. Download sample database based on MySQL. Check out our 1000+ SQL Exercises with solution and explanation to improve your skills. . Ok, Got it. Luis Fernandez · ...Sample table: Customer. 8. From the following table, write a SQL query to create a union of two queries that shows the customer id, cities, and ratings of all customers. Those with a rating of 300 or greater will have the words 'High Rating', while the others will have the words 'Low Rating'.Java Abstract Classes [ 12 exercises with solution ] [An editor is available at the bottom of the page to write and execute the scripts.Go to the editor] . Abstraction: All programming languages provide abstractions. It can be argued that the complexity of the problems you’re able to solve is directly related to the kind and quality of abstraction.Web development tutorials on HTML, CSS, JS, PHP, SQL, MySQL, PostgreSQL, MongoDB, JSON and more.Ok, Got it. Luis Fernandez · ...NumPy Tutorial: NumPy is the fundamental package for scientific computing in Python. It is a Python library that provides a multidimensional array object, various derived objects (such as masked arrays and matrices), and an assortment of routines for fast operations on arrays, including mathematical, logical, shape manipulation, sorting, selecting, I/O, discrete Fourier transforms, basic ...Nov 21, 2023 · Adventureworks Database Exercises. C# Sharp Basic Exercises. SQL COUNT () with distinct. JavaScript String Exercises. JavaScript HTML Form Validation. Java Collection Exercises. SQL COUNT () function. SQL Inner Join. This work is licensed under a Creative Commons Attribution 4.0 International License. R Programming Basic Exercises, Practice and Solution: Write a R program to take input from the user (name and age) and display the values. Also print the version of R installation.An editor is available at the bottom of the page to write and execute the scripts. Go to the editor. 1. Write a Java program to convert temperature from Fahrenheit to Celsius degrees. Test Data Input a degree in Fahrenheit: 212 Expected Output 212.0 degree Fahrenheit is equal to 100.0 in Celsius Click me to see the solution. 2.27 November, 2023. JavaFX styling and CSS exercises and solutions. JavaFX Application with multiple styled buttons. Creating a JavaFX form with styled text fields. Customizing JavaFX labels with CSS styling. Customizing JavaFX toggle buttons with CSS styling. Separating styling from logic in JavaFX with external CSS.w3resource.com | 166 followers on LinkedIn. w3resource offers web development tutorials. We believe in Open Source. Love standards.Pandas Exercises, Practice, Solution: pandas is a Python package providing fast, flexible, and expressive data structures designed to make working with relational or labeled data both easy and intuitive.w3resource. Student Structure in C: Input, display, and average marks calculation Last update on December 08 2023 12:43:48 (UTC/GMT +8 hours) C programming related to structures: Exercise-1 …Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.This function will be used to calculate the sum of all the numbers in the items list. sum_numbers = 0 -> This line initializes a variable called sum_numbers to zero. This variable will be used to keep track of the running total of the sum of the numbers in the list. for x in items: -> This line starts a loop that will iterate over each element ...C Queue [13 exercises with solution] [An editor is available at the bottom of the page to write and execute the scripts.Go to the editor]. From Wikipedia - In computer science, a queue is a collection of entities that are maintained in a sequence and can be modified by the addition of entities at one end of the sequence and the removal of …C Basic Declarations and Expressions: Exercise-3 with Solution. Write a C program to print a block F using the hash (#), where the F has a height of six characters and width of five and four characters. And also print a very large 'C'.Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.Java Basic: Exercise-1 with Solution. Write a Java program to print 'Hello' on screen and your name on a separate line. When we run this Java program, we'll see this message displayed in the console or terminal.For MySQL, create a database first, select that and then import the given txt file. Download sample database based on MySQL. Check out our 1000+ SQL Exercises with solution and explanation to improve your skills. .What does r/webdev think of w3resource.com? They seem to have a lot of material, but I haven't found anything terrible about them yet and I haven't looked …Python List Exercises, Practice and Solution - Contains 280 Python list exercises with solutions for beginners to advanced programmers. These exercises cover various topics such as summing and multiplying items, finding large and small numbers, removing duplicates, checking emptiness, cloning or copying lists, generating 3D arrays, …C compiler ignores comments at the time of reading the source code C language supports the following two different ways of commenting. Starts with a "/*" and ends with "*/" at the end of the comment. Comments in C language can occupy more than one line but cannot be nested. Comments can appear anywhere in a C program.W3resource. 361 likes · 9 talking about this. Founded in October 2008, w3resource.com has been live since 7th February 2011.Jun 22, 2023 · MongoDB Exercises, Practice, Solution: MongoDB is a free and open-source cross-platform document-oriented database. Classified as a NoSQL database, MongoDB avoids the traditional table-based relational database structure in favor of JSON-like documents with dynamic schemas, making the integration of data in certain types of applications easier and faster. 7. Write a SQL statement to join the tables salesman, customer and orders so that the same column of each table appears once and only the relational rows are returned. Sample table: orders. Sample table: customer. Sample table : salesman. Click me to see the solution with pictorial presentation. 8.1) SQL EQUI JOIN : The SQL EQUI JOIN is a simple SQL join uses the equal sign (=) as the comparison operator for the condition. It has two types - SQL Outer join and SQL Inner join. 2) SQL NON EQUI JOIN : The SQL NON EQUI JOIN is a join uses comparison operator other than the equal sign like >, <, >=, <= with the condition.Go to the editor] 1. Write a C program to accept two integers and check whether they are equal or not. Test Data : 15 15. Expected Output : Number1 and Number2 are equal. Click me to see the solution. 2. Write a C program to check whether a given number is even or odd.The best way we learn anything is by practice and exercise questions. Here you have the opportunity to practice the Java programming language concepts by solving the exercises starting from basic to more complex exercises. A sample solution is provided for each exercise. It is recommended to do these exercises by yourself first before checking ...Input a string: w3resource Reversed string using a stack is: ecruoser3w Click me to see the solution. 5. Write a C program to implement two stacks in a single array and performs push and pop operations for both stacks. > Expected Output: Elements in Stack-1 are: 50 40 30 10 Elements in Stack-2 are: 70 60 50 40 20 Click me to see the …W3resource

This is the first article of w3resource's Java programming tutorial. The aim of this tutorial is to make beginners conversant with Java programming language. Introduction to Java programming language. Today Java programming language is one of the most popular programming languages which is used in critical applications like stock market …. W3resource

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C++ Array [30 exercises with solution] [ An editor is available at the bottom of the page to write and execute the scripts. Go to the editor] 1. Write a C++ program to find the largest element of a given array of integers. 2. Write a C++ program to find the largest three elements in an array.W3Schools is a freemium educational website for learning coding online. [1] [2] Initially released in 1998, it derives its name from the World Wide Web but is not affiliated with …The given string is: w3resource The duplicate characters and counts are: e appears 2 times r appears 2 times Click me to see the solution. 52. Write a Java program to check if two given strings are rotations of each other. Sample Output: The given strings are: ABACD and CDABA The concatination of 1st string twice is: ABACDABACD The 2nd …Python class, Basic exercises [12 exercises with solution] 1. Write a Python program to import a built-in array module and display the namespace of the said module. Click me to see the solution. 2. Write a Python program to create a class and display the namespace of that class. Click me to see the solution.Features of the w3resource C Tutorial. In this series of tutorials, we have covered C Programming in detail. While creating this, we have taken care that learners can master the fundamentals of C Language. Here is a list of features we have included in all of the chapters : 1. We have started with a brief history and simple description.Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.১০ নভে, ২০২৩ ... Top 7 w3resource.com Alternatives & Competitors · programiz.com. Discover how your top competitor's audience surfs the web so you can tailor ...w3resource. C Exercises: Calculate the determinant of a 3 x 3 matrix Last update on November 29 2023 12:56:04 (UTC/GMT +8 hours) C Array: Exercise-28 with Solution. Write a program in C to calculate the determinant of a 3 x 3 matrix. Visual Presentation: Sample Solution: C Code:w3resource · JavaScript - common-editor-exercises · Javascript: multiplication and division of two numbers - basic - ex-10 · html css common editor · JavaScript ...Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.Oct 28, 2023 · Java Basic: Exercise-1 with Solution. Write a Java program to print 'Hello' on screen and your name on a separate line. When we run this Java program, we'll see this message displayed in the console or terminal. Pandas Exercises, Practice, Solution: pandas is a Python package providing fast, flexible, and expressive data structures designed to make working with relational or labeled data both easy and intuitive.w3resource. Check Python version Last update on October 28 2023 13:02:50 (UTC/GMT +8 hours) Python Basic: Exercise-2 with Solution. Write a Python program to find out what version of Python you are using.Features of the w3resource JavaScript Tutorial. In this series of tutorials, we have covered JavaScript 1.5+ in detail. While creating this, we have taken care that learners can master the basics of JavaScript. Here is a list of features we have included in all of the chapters : We have started with a clear and simple description.The w3resource SQL Tutorial is ideal for SQL beginners, including those without prior experience. Our tutorial offers in-depth guidance, covering everything from basic queries like "SELECT * FROM …Input a string: w3resource.com The string contains 14 number of characters. So, the length of the string w3resource.com is:14 Click me to see the sample solution. 35. Write a program in C++ to display a pattern like a right angle triangle using an asterisk. Sample Output: Input number of rows: 5 * ** *** **** ***** Click me to see the sample ...Aug 19, 2022 · What is HTML? HTML stands for Hyper Text Markup Language is used to create web pages as well as other types of documents viewable in a web browser. HTML is a standard specified and maintained by World Wide Web Consortium. From its invention, HTML has evolved through different versions. Present version of HTML is HTML 4.01. Go to the editor] 1. Write a JavaScript program that displays the largest integer among two integers. Click me to see the solution. 2. Write a JavaScript conditional statement to find the sign of the product of three numbers. Display …Input a string: w3resource.com The string contains 14 number of characters. So, the length of the string w3resource.com is:14 Click me to see the sample solution. 35. Write a program in C++ to display a pattern like a right angle triangle using an asterisk. Sample Output: Input number of rows: 5 * ** *** **** ***** Click me to see the sample ...Oracle tutorial of w3resource is a comprehensive tutorial to learn Oracle database. Currently we have covered Oracle 11g with thousands of examples, pictorial presentation, explanation and more.Aug 19, 2022 · Features of the w3resource JavaScript Tutorial. In this series of tutorials, we have covered JavaScript 1.5+ in detail. While creating this, we have taken care that learners can master the basics of JavaScript. Here is a list of features we have included in all of the chapters : We have started with a clear and simple description. A procedure (often called a stored procedure) is a subroutine like a subprogram in a regular computing language, stored in database. A procedure has a name, a parameter list, and SQL statement (s). All most all relational database system supports stored procedure, MySQL 5 introduce stored procedure. In the following sections we …May 5, 2023 · Write a Python program to print the documents (syntax, description etc.) of Python built-in function (s). abs (number) -> number Return the absolute value of the argument. Click me to see the sample solution. Write a Python program that prints the calendar for a given month and year. Use 'calendar' module. C Array [107 exercises with solution] [An editor is available at the bottom of the page to write and execute the scripts.Go to the editor] . 1. Write a program in C to store elements in an array and print them.C# Sharp Basic Exercises. SQL COUNT () with distinct. JavaScript String Exercises. JavaScript HTML Form Validation. Java Collection Exercises. SQL COUNT () function. SQL Inner Join. This work is licensed under a Creative Commons Attribution 4.0 International License. ©w3resource.com 2011-2023.Click me to see the solution Enter the first Integer :10 Enter the second Integer :2 Here are the options : 1-Addition. 2-Substraction. 3-Multiplication. 4-Division. 5-Exit. Input your choice :3 The Multiplication of 10 and 2 is: 20. Click me to see the solution. C# Sharp Code Editor: More to Come !JavaScript HTML Form Validation. SQL COUNT () function. ©w3resource.com 2011-2023. SQL Data Types : A data type defines the kind of value a field (of a table) can contain. Here we have given a list of SQL 2003 standard data types with a short description and discussed data types of various databases.Oct 28, 2023 · Java Basic: Exercise-1 with Solution. Write a Java program to print 'Hello' on screen and your name on a separate line. When we run this Java program, we'll see this message displayed in the console or terminal. Python class, Basic exercises [12 exercises with solution] 1. Write a Python program to import a built-in array module and display the namespace of the said module. Click me to see the solution. 2. Write a Python program to create a class and display the namespace of that class. Click me to see the solution.SQL injection is a technique (like other web attack mechanisms) to attack data driven applications. This attack can bypass a firewall and can affect a fully patched system. The attacker takes the advantage of poorly filtered or not correctly escaped characters embedded in SQL statements into parsing variable data from user input.C compiler ignores comments at the time of reading the source code C language supports the following two different ways of commenting. Starts with a "/*" and ends with "*/" at the end of the comment. Comments in C language can occupy more than one line but cannot be nested. Comments can appear anywhere in a C program.Features of the w3resource PHP tutorials . In this series of tutorials, we have covered PHP 5 in detail. While creating this, we have to take care that learners can master the basics of PHP and can be prepared to develop web based applications. Here is a list of features we have included in all of the chapters : 1. We have started with a clear …SQL [33 exercises with solution] [An editor is available at the bottom of the page to write and execute the scripts.Go to the editor] . 1. Write a SQL statement that displays all the information about all salespeople.Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.MySQL tutorial of w3resource is a comprehensive tutorial to learn MySQL(5.6). We have hundreds of examples covered, often with PHP code. This helps you to learn how to create PHP-MySQL based web applications. Production Releases MySQL 5.6 : Latest General Availability (Production) releaseHTML5 is the fifth revision of HTML, a markup language to present and structure web document. Though not officially released, developers have started using HTML5 and creating excellent web applications. The parent concern of HTML5, The Web Hypertext Application Technology Working Group (WHATWG) along with W3C began …Python Web Project-1 with Solution. National Grid ESO, in partnership with Environmental Defense Fund Europe, University of Oxford Department of Computer Science and WWF, have developed the world's first Carbon Intensity forecast with a regional breakdown.w3resource. Become a Patron! share. Facebook; Twitter; Google Plus; Linkedin; RSS; Frontend tutorials. HTML CSS JavaScript HTML5 Schema.org php.js Twitter Bootstrap Responsive Web Design tutorial Zurb Foundation 3 tutorials Pure CSS HTML5 Canvas JavaScript Course Icon Angular Vue Jest Mocha npm Yarn Cypress. Backend tutorials. …SQL injection is a technique (like other web attack mechanisms) to attack data driven applications. This attack can bypass a firewall and can affect a fully patched system. The attacker takes the advantage of poorly filtered or not correctly escaped characters embedded in SQL statements into parsing variable data from user input.os.path.exists ('main.py') checks whether a file or directory named 'main.py' exists in the current directory and returns True if it does and False if it does not. Then it prints the output of these two function calls. The difference with previous example is that, os.path.exists () checks for the existence of file or directory, where as os.path ...Write a Python function to multiply all the numbers in a list. Sample List : (8, 2, 3, -1, 7) Expected Output : -336 Click me to see the sample solution. 4. Write a Python program to reverse a string. Sample String : "1234abcd" Expected Output : "dcba4321" Click me to see the sample solution. 5.For MySQL, create a database first, select that and then import the given txt file. Download sample database based on MySQL. 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Sample List : (8, 2, 3, -1, 7) Expected Output : -336 Click me to see the sample solution. 4. Write a Python program to reverse a string. Sample String : "1234abcd" Expected Output : "dcba4321" Click me to see the sample solution. 5.Practice with solution of exercises on CPP: This page contains C++ exercises with solutions to implement Stack data structure using an array. These exercises cover various Stack operations such as Push, Pop, check if Stack is empty or full, sorting, reversing, calculating average value and more of Stack elements.Exercises We have gathered a variety of Python exercises (with answers) for each Python Chapter. Try to solve an exercise by filling in the missing parts of a code. If you're stuck, …Click me to see the solution. 9. From the following tables, write a SQL query to find the movies released before 1st January 1989. Sort the result-set in descending order by date of release. Return movie title, release year, date of release, duration, and first and last name of the director. Sample table: movie.jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people ...Input any string: w3resource Expected Output: The reversed string is: ecruoser3w Click me to see the solution. 10. Write a program in C to find the Factorial of a number using recursion. > Test Data : Input a number : 5 Expected Output: The Factorial of 5 is : 120 Click me to see the solution. 11.Learn and practice Java programming language concepts with hundreds of exercises starting from basic to advanced. 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