Канал: Selected Topics in IT

C++ 72: How to format output with setw and left/right (iomanip)

C++ 72: How to format output with setw and left/right (iomanip)

Java 118: Dynamic numbering in menu options from hardcoded to automated

Java 118: Dynamic numbering in menu options from hardcoded to automated

Java 117: Dynamically displaying a well formatted menu using an array

Java 117: Dynamically displaying a well formatted menu using an array

Java 116: Running a standard Java program from Android Studio

Java 116: Running a standard Java program from Android Studio

WordPress 2: Create and link a Rogister user form in WordPress using Forminator

WordPress 2: Create and link a Rogister user form in WordPress using Forminator

WordPress 1: Create and link a Login user form in WordPress using Forminator

WordPress 1: Create and link a Login user form in WordPress using Forminator

C 19: Read from a text file into structs

C 19: Read from a text file into structs

PHP and MySQL 16: Fetch rows from a result set using mysqli_fetch_assoc

PHP and MySQL 16: Fetch rows from a result set using mysqli_fetch_assoc

PHP and MySQL 15: Fetch rows from a result set using mysqli_fetch_array

PHP and MySQL 15: Fetch rows from a result set using mysqli_fetch_array

jQuery 17: Turn the burger icon into an "X” using jQuery and CSS with a simple transition effect

jQuery 17: Turn the burger icon into an "X” using jQuery and CSS with a simple transition effect

jQuery 16: Close the nav-links if clicking outside the burger and nav-links

jQuery 16: Close the nav-links if clicking outside the burger and nav-links

jQuery 15: Add toggle functionality to make your navbar responsive on smaller devices

jQuery 15: Add toggle functionality to make your navbar responsive on smaller devices

JavaScript 18: Add toggle functionality to make your navbar responsive on smaller devices

JavaScript 18: Add toggle functionality to make your navbar responsive on smaller devices

HTML and CSS (part 54): Why the meta name="viewport" tag is crucial for responsive design

HTML and CSS (part 54): Why the meta name="viewport" tag is crucial for responsive design

HTML and CSS (part 53): How to create a responsive navigation bar using HTML and CSS

HTML and CSS (part 53): How to create a responsive navigation bar using HTML and CSS

C# 49: Understanding bitwise operations on vectors – NOT

C# 49: Understanding bitwise operations on vectors – NOT

C# 48: Understanding bitwise operations on vectors – OR, and XOR

C# 48: Understanding bitwise operations on vectors – OR, and XOR

C# 47: Understanding binary numbers and bitwise operation on vectors – AND

C# 47: Understanding binary numbers and bitwise operation on vectors – AND

C# 46: Element-wise vector subtraction, multiplication, division, negation, dot product

C# 46: Element-wise vector subtraction, multiplication, division, negation, dot product

C# 45: Element-wise vector addition

C# 45: Element-wise vector addition

C# 44: Vectors: creation, accessing/displaying/multiplying elements

C# 44: Vectors: creation, accessing/displaying/multiplying elements

C# 43: Lists: creation, adding/removing/accessing elements, and list iteration.

C# 43: Lists: creation, adding/removing/accessing elements, and list iteration.

Python 73: How to use the help() function to access docstrings

Python 73: How to use the help() function to access docstrings

Python 72: Docstrings and the special value variable __doc__ for accessing them

Python 72: Docstrings and the special value variable doc for accessing them

Python 71: Special variable __name__ and special value __main__, how they work together

Python 71: Special variable name and special value main, how they work together

Python 70: Find the name of the current module using the special variable __name__

Python 70: Find the name of the current module using the special variable name

C++ 71: Shorter version of selection sort and why its O(n^2)

C++ 71: Shorter version of selection sort and why its O(n^2)

C++ 70: Selection sort and why its O(n^2) in the best, average and worst cases

C++ 70: Selection sort and why its O(n^2) in the best, average and worst cases

C++ 69: Vectors - initializing, adding, accessing and removing elements, and iteration

C++ 69: Vectors - initializing, adding, accessing and removing elements, and iteration

C++ 68: Compare 2 strings using the compare function

C++ 68: Compare 2 strings using the compare function

C++ 67: Compare 2 strings using the == (equality) operator

C++ 67: Compare 2 strings using the == (equality) operator

Java 115: NumberFormatException versus InputMismatchException

Java 115: NumberFormatException versus InputMismatchException

Java 114: Reduce code duplication with methods for better code and passing scanner as argument

Java 114: Reduce code duplication with methods for better code and passing scanner as argument

Java 113: Optimize the loop to exit at the first non-numeric character with or without using return.

Java 113: Optimize the loop to exit at the first non-numeric character with or without using return.

Java 112: Avoid a NumberFormatException when user enters an empty string instead of a number

Java 112: Avoid a NumberFormatException when user enters an empty string instead of a number

Java 111: A recap on abstract classes and interfaces

Java 111: A recap on abstract classes and interfaces

Java 110: Defining constants in interfaces versus abstract/concrete classes

Java 110: Defining constants in interfaces versus abstract/concrete classes

Java 109: How do interfaces support multiple inheritance in Java?

Java 109: How do interfaces support multiple inheritance in Java?

Java 108: interfaces can have default and static methods, how do we do this, how are they different?

Java 108: interfaces can have default and static methods, how do we do this, how are they different?

Java 107: Interfaces, and how they differ from abstract classes

Java 107: Interfaces, and how they differ from abstract classes

Java 106: Upcasting (Child to Parent) and downcasting (Parent to Child)

Java 106: Upcasting (Child to Parent) and downcasting (Parent to Child)

Java 105: Abstract classes

Java 105: Abstract classes

Java 104: Generate cubic series using for loops

Java 104: Generate cubic series using for loops

C 18: Define, initialize from user input, and display structures

C 18: Define, initialize from user input, and display structures

C 17: Define, initialize, and display structures

C 17: Define, initialize, and display structures

C 16: Round and display a number to 2 decimal places using the ‘printf’ function

C 16: Round and display a number to 2 decimal places using the ‘printf’ function

PHP and MySQL 14: Calculate the factorial of a number entered by the user

PHP and MySQL 14: Calculate the factorial of a number entered by the user

jQuery 14: Create a smooth animation effect when interacting with the grid items (Hover Event)

jQuery 14: Create a smooth animation effect when interacting with the grid items (Hover Event)

jQuery 13: Changing grid item background color on double click (Double Click Event)

jQuery 13: Changing grid item background color on double click (Double Click Event)

jQuery 12: Add event listener to change each clicked grid item background colour (Click Event)click

jQuery 12: Add event listener to change each clicked grid item background colour (Click Event)click

JavaScript 17: Add an event listener to change each clicked grid item background colour

JavaScript 17: Add an event listener to change each clicked grid item background colour

HTML and CSS (part 52): Create a smooth transition change on grid item hover

HTML and CSS (part 52): Create a smooth transition change on grid item hover

HTML and CSS (part 51): Create a 4x3 CSS grid layout

HTML and CSS (part 51): Create a 4x3 CSS grid layout

HTML and CSS (part 50): Create a basic 3x2 CSS grid layout

HTML and CSS (part 50): Create a basic 3x2 CSS grid layout

C# 42: A method to checks if a text has punctuation using Char.IsLetterOrDigit and Char.IsWhiteSpace

C# 42: A method to checks if a text has punctuation using Char.IsLetterOrDigit and Char.IsWhiteSpace

C# 41: Create one generic method that can print arrays of different types (chars, strings, numbers)

C# 41: Create one generic method that can print arrays of different types (chars, strings, numbers)

C# 40: Reverse an array of chars, strings and numbers using Array.Reverse()

C# 40: Reverse an array of chars, strings and numbers using Array.Reverse()

C# 39: Find if a word, number or a phrase is a palindrome and interpolated strings

C# 39: Find if a word, number or a phrase is a palindrome and interpolated strings

Python 69: Word counter

Python 69: Word counter

C++ 66: Count to 1000. Thank You for 1000 Subscribers!

C++ 66: Count to 1000. Thank You for 1000 Subscribers!

C++ 65: A basic calculator that performs addition, subtraction, multiplication, and division.

C++ 65: A basic calculator that performs addition, subtraction, multiplication, and division.

Java 103: Why does the stage hide after specific actions and how to keep it visible?

Java 103: Why does the stage hide after specific actions and how to keep it visible?

Java 102: A simple colour picker using JavaFX

Java 102: A simple colour picker using JavaFX

C 15: Prevent division by 0

C 15: Prevent division by 0

C 14: Basic calculator using a switch statement

C 14: Basic calculator using a switch statement

PHP and MySQL 13: Random Quote Generator

PHP and MySQL 13: Random Quote Generator

jQuery 11: Explicitly clear the form fields when the page is reloaded

jQuery 11: Explicitly clear the form fields when the page is reloaded

jQuery 10: Client-side validation using jQuery for the login form (onsubmit event)

jQuery 10: Client-side validation using jQuery for the login form (onsubmit event)

JavaScript 16: Prevent form from submitting using preventDefault()

JavaScript 16: Prevent form from submitting using preventDefault()

JavaScript 15: Client-side validation using JS for the login form (onsubmit event)

JavaScript 15: Client-side validation using JS for the login form (onsubmit event)

HTML and CSS (part 49): Center align the legend of a html form in Firefox using CSS

HTML and CSS (part 49): Center align the legend of a html form in Firefox using CSS

HTML and CSS (part 48): Styling the login form in CSS

HTML and CSS (part 48): Styling the login form in CSS

C++ 64: Make a number stop rounding to 2 decimals after rounding the previous one.

C++ 64: Make a number stop rounding to 2 decimals after rounding the previous one.

HTML and CSS (part 47): What are the fieldset and legend elements

HTML and CSS (part 47): What are the fieldset and legend elements

HTML and CSS (part 46): What does the required attribute in an input HTML element mean

HTML and CSS (part 46): What does the required attribute in an input HTML element mean

C# 38: Print the timetable from 1 to 10 using a single loop with a horizontal line between rows

C# 38: Print the timetable from 1 to 10 using a single loop with a horizontal line between rows

C# 37: Print the timetable from 1 to 10 using nested loops - add a horizontal line between rows

C# 37: Print the timetable from 1 to 10 using nested loops - add a horizontal line between rows

C# 36: Print the timetable from 1 to 10 using nested loops

C# 36: Print the timetable from 1 to 10 using nested loops

Python 68: Instance vs class variables/attributes

Python 68: Instance vs class variables/attributes

C++ 63: Take 20 values from the user and find the sum of odd numbers only.

C++ 63: Take 20 values from the user and find the sum of odd numbers only.

C++ 62: Take 20 values from the user and find the sum of even numbers only.

C++ 62: Take 20 values from the user and find the sum of even numbers only.

Java 101: StringBuilder VS StringBuffer (videos 98-100 combined)

Java 101: StringBuilder VS StringBuffer (videos 98-100 combined)

Java 100: StringBuilder VS StringBuffer

Java 100: StringBuilder VS StringBuffer

Java 99: StringBuilder and some of its methods

Java 99: StringBuilder and some of its methods

Java 98: StringBuffer and some of its methods

Java 98: StringBuffer and some of its methods

C 13: Why do we have to use the & when we pass variables but sometimes, we don't

C 13: Why do we have to use the & when we pass variables but sometimes, we don't

C 12: Incrementing a pointer - *pointer++ vs (*pointer)++

C 12: Incrementing a pointer - pointer++ vs (pointer)++

PHP and MySQL 12: PHP functions to check for existing usernames and hashed passwords

PHP and MySQL 12: PHP functions to check for existing usernames and hashed passwords

PHP and MySQL 11: Hash user’s password using PHP password_hash function

PHP and MySQL 11: Hash user’s password using PHP password_hash function

PHP and MySQL 10: Register a user and insert their data into the database

PHP and MySQL 10: Register a user and insert their data into the database

jQuery 9: Add a countdown timer to a html page

jQuery 9: Add a countdown timer to a html page

JavaScript 14: Event listener checks and styles unselected radio buttons.

JavaScript 14: Event listener checks and styles unselected radio buttons.

JavaScript 13: Check if no radio button is selected on form submission

JavaScript 13: Check if no radio button is selected on form submission

HTML and CSS (part 45): Put a space after the radio input field

HTML and CSS (part 45): Put a space after the radio input field

HTML and CSS (part 44): Center a form on a page

HTML and CSS (part 44): Center a form on a page

C# 35: Round a number to 3 decimal places using Math.Round

C# 35: Round a number to 3 decimal places using Math.Round

C# 34: Show a number in 3 decimal places without rounding using the Floor method

C# 34: Show a number in 3 decimal places without rounding using the Floor method

C 11: Show a number in 3 decimal places without rounding - using the floor function

C 11: Show a number in 3 decimal places without rounding - using the floor function

C 10: Convert a number to string, and show it in 3 decimal places without rounding

C 10: Convert a number to string, and show it in 3 decimal places without rounding

Python 67: Show a number in 3 decimal places without rounding using the floor method

Python 67: Show a number in 3 decimal places without rounding using the floor method

Python 66: Date validation, verify correct date range and format (YYYY-MM-DD)

Python 66: Date validation, verify correct date range and format (YYYY-MM-DD)

Python 65: A function that extracts and returns the month from a string using the split method

Python 65: A function that extracts and returns the month from a string using the split method

Python 64: A function that extracts and returns the month from a string using strptime

Python 64: A function that extracts and returns the month from a string using strptime

C++ 61: Error window is not appearing in Dev C++, I can’t see the errors!

C++ 61: Error window is not appearing in Dev C++, I can’t see the errors!

C++ 60: Check if the user is entering a blank name

C++ 60: Check if the user is entering a blank name

C++ 59: Check if the user is entering an empty name

C++ 59: Check if the user is entering an empty name

C++ 58: Selection sort to sort numbers from smallest to largest using while and for loops

C++ 58: Selection sort to sort numbers from smallest to largest using while and for loops

Java 97: Different ways to print the content of an ArrayList (videos 92 to 96)

Java 97: Different ways to print the content of an ArrayList (videos 92 to 96)

Java 96: Print the content of an ArrayList using traditional for loops

Java 96: Print the content of an ArrayList using traditional for loops

Java 95: Print the content of an ArrayList using the method reference operator (::)

Java 95: Print the content of an ArrayList using the method reference operator (::)

Java 94: Print the content of an ArrayList using a lambda expression

Java 94: Print the content of an ArrayList using a lambda expression

Java 93: Print the content of an ArrayList using Java 8 Streams

Java 93: Print the content of an ArrayList using Java 8 Streams

Java 92: Print the content of an ArrayList using the foreach (enhanced for loop)

Java 92: Print the content of an ArrayList using the foreach (enhanced for loop)

Java 91: Let Eclipse generate getters (accessors) and setters (mutators) for your class fields

Java 91: Let Eclipse generate getters (accessors) and setters (mutators) for your class fields

C 9: Using strcpy with strcat to concatenate 2 strings together into a new variable

C 9: Using strcpy with strcat to concatenate 2 strings together into a new variable

C 8: Using strcat to concatenate 2 strings together

C 8: Using strcat to concatenate 2 strings together

C 7: Pass by reference to a function instead of returning values from a function

C 7: Pass by reference to a function instead of returning values from a function

PHP and MySQL 9: Reduce the risks of SQL injection attacks using prepared statements.

PHP and MySQL 9: Reduce the risks of SQL injection attacks using prepared statements.

PHP and MySQL 8: Using the exit() function to prevent further code execution.

PHP and MySQL 8: Using the exit() function to prevent further code execution.

PHP and MySQL 7: Using the header() function to redirect a user to another page

PHP and MySQL 7: Using the header() function to redirect a user to another page

PHP and MySQL 6: Check if the entered username and password are correct in the saved table record.

PHP and MySQL 6: Check if the entered username and password are correct in the saved table record.

jQuery 8: Using the charAt, toUpperCase and slice methods

jQuery 8: Using the charAt, toUpperCase and slice methods

jQuery 7: Populate values from a jQuery array into html as radio buttons with labels

jQuery 7: Populate values from a jQuery array into html as radio buttons with labels

jQuery 6: Inline css styling in jQuery

jQuery 6: Inline css styling in jQuery

JavaScript 12: Inline CSS styling in javascript

JavaScript 12: Inline CSS styling in javascript

JavaScript 11: Calculate user score based on correct/wrong answers upon submission of form

JavaScript 11: Calculate user score based on correct/wrong answers upon submission of form

JavaScript 10: Check answers for multiple questions populated from an array and clearing the form.

JavaScript 10: Check answers for multiple questions populated from an array and clearing the form.

JavaScript 9: Populate multiple questions from an array of objects into HTML, string interpolation.

JavaScript 9: Populate multiple questions from an array of objects into HTML, string interpolation.

JavaScript 8: Event listener checks the selected MCQ choice and add icons next to the chosen answer

JavaScript 8: Event listener checks the selected MCQ choice and add icons next to the chosen answer

HTML and CSS (part 43): Specify maximum width that an element can be using the max-width property

HTML and CSS (part 43): Specify maximum width that an element can be using the max-width property

HTML and CSS (part 42): Fix footer at the bottom of the page with the position and bottom properties

HTML and CSS (part 42): Fix footer at the bottom of the page with the position and bottom properties

HTML and CSS (part 41): Use min-height to set a minimum height for an element.

HTML and CSS (part 41): Use min-height to set a minimum height for an element.

HTML and CSS (part 40): Remove gaps between the header, main, and footer sections.

HTML and CSS (part 40): Remove gaps between the header, main, and footer sections.

C# 33: Use the "using" statement to take care of closing a file

C# 33: Use the "using" statement to take care of closing a file

C# 32: Close the file in the finally block

C# 32: Close the file in the finally block

C# 31: Handle a FileNotFoundException when opening a file for reading

C# 31: Handle a FileNotFoundException when opening a file for reading

C# 30: Read lines of text from a file using StreamReader, and print the lines with line numbers

C# 30: Read lines of text from a file using StreamReader, and print the lines with line numbers

Python 63: A function that counts and returns the number of digits in an integer

Python 63: A function that counts and returns the number of digits in an integer

Python 62: How the round function works when the second argument is negative versus positive.

Python 62: How the round function works when the second argument is negative versus positive.

C++ 57: Insertion sort to sort numbers from smallest to largest using while and for loops

C++ 57: Insertion sort to sort numbers from smallest to largest using while and for loops

C++ 56: Sort 3 integers from smallest to largest using a swap function

C++ 56: Sort 3 integers from smallest to largest using a swap function

C++ 55: Swap 2 integers if the first is larger than the second using a swap function using pointers

C++ 55: Swap 2 integers if the first is larger than the second using a swap function using pointers

C++ 54: Find the smallest value in an array of integers

C++ 54: Find the smallest value in an array of integers

C++ 53: Find the largest value in an array of integers

C++ 53: Find the largest value in an array of integers

C++ 52: Convert a single character to lower case using the tolower() function

C++ 52: Convert a single character to lower case using the tolower() function

C++ 51: Run the whole program again using do-while loops.

C++ 51: Run the whole program again using do-while loops.

C++ 50: A program that prints prime number within a given range from smallest to largest.prime

C++ 50: A program that prints prime number within a given range from smallest to largest.prime

Java 90: Make sure the user enters only string values in an array of strings using Character.isDigit

Java 90: Make sure the user enters only string values in an array of strings using Character.isDigit

Java 89: Using for loops to get the user to enter 2 numbers and display their product at each round

Java 89: Using for loops to get the user to enter 2 numbers and display their product at each round

Java 72: Constructor chaining

Java 72: Constructor chaining

Java 88: What does @Override do?

Java 88: What does @Override do?

Java 87: What it means to declare a method with the final keyword

Java 87: What it means to declare a method with the final keyword

Java 86: What it means to declare a class with the final keyword

Java 86: What it means to declare a class with the final keyword

C 6: Define a constant using const vs define

C 6: Define a constant using const vs define

C 5: scanf function reads only 1 word, use fgets to read more words

C 5: scanf function reads only 1 word, use fgets to read more words

C 4: What is a function prototype?

C 4: What is a function prototype?

C 3: A function that returns the product of 2 numbers.

C 3: A function that returns the product of 2 numbers.

C 2: Let the user decide how many times the for loop will run to get multiple user input

C 2: Let the user decide how many times the for loop will run to get multiple user input

C 1: Using for loops to get multiple user input - in Dev-C

C 1: Using for loops to get multiple user input - in Dev-C

PHP and MySQL 5: Live Server extension in VS Code and Mozilla Firefox (or any browser)

PHP and MySQL 5: Live Server extension in VS Code and Mozilla Firefox (or any browser)

PHP and MySQL 4: The die and mysqli_connect_error functions.

PHP and MySQL 4: The die and mysqli_connect_error functions.

PHP and MySQL 3: Connect to a MySQL database with PHP

PHP and MySQL 3: Connect to a MySQL database with PHP

PHP and MySQL 2: Create a database and a table in MySQL Workbench

PHP and MySQL 2: Create a database and a table in MySQL Workbench

PHP and MySQL 1: Create a new user in MySQL Workbench

PHP and MySQL 1: Create a new user in MySQL Workbench

jQuery 5: Link to an external jQuery file

jQuery 5: Link to an external jQuery file

jQuery 4: How to write comments in jQuery

jQuery 4: How to write comments in jQuery

JavaScript 7: Create a JavaScript class

JavaScript 7: Create a JavaScript class

JavaScript 6: Create a JavaScript Object using const and what does const mean?

JavaScript 6: Create a JavaScript Object using const and what does const mean?

HTML and CSS (part 39): CSS descendant selector

HTML and CSS (part 39): CSS descendant selector

HTML and CSS (part 38): Using labels for the radio buttons on a form.

HTML and CSS (part 38): Using labels for the radio buttons on a form.

HTML and CSS (part 37): Create a multiple-choice (MCQ) assessment using radio buttons and a form.

HTML and CSS (part 37): Create a multiple-choice (MCQ) assessment using radio buttons and a form.

C# 29: Print a single/double quote and a backslash within a string in Write/WriteLine statement.

C# 29: Print a single/double quote and a backslash within a string in Write/WriteLine statement.

C# 28: Write() vs WriteLine()

C# 28: Write() vs WriteLine()

Python 61: How to pass lists around functions as an argument?

Python 61: How to pass lists around functions as an argument?

Python 60: Print a string within a certain number of spaces using formatted string literals

Python 60: Print a string within a certain number of spaces using formatted string literals

C++ 49: Dangling pointer versus memory leaks

C++ 49: Dangling pointer versus memory leaks

C++ 48: Memory leak

C++ 48: Memory leak

Java 85: Access modifiers on classes: public and package – they cannot be protected or private

Java 85: Access modifiers on classes: public and package – they cannot be protected or private

Java 84: Access modifiers on methods (parts A, B, C and D): public, protected, private and package

Java 84: Access modifiers on methods (parts A, B, C and D): public, protected, private and package

Java 84: Access modifiers on methods (part D): private

Java 84: Access modifiers on methods (part D): private

Java 84: Access modifiers on methods (part C): package

Java 84: Access modifiers on methods (part C): package

Java 84: Access modifiers on methods (part B): protected

Java 84: Access modifiers on methods (part B): protected

Java 84: Access modifiers on methods (part A): public

Java 84: Access modifiers on methods (part A): public

jQuery 3: Using the ready and replaceWith events

jQuery 3: Using the ready and replaceWith events

jQuery 2: The ready event, and hide and show content

jQuery 2: The ready event, and hide and show content

jQuery 1: What do you need to start jQuery?

jQuery 1: What do you need to start jQuery?

JavaScript 5: How do I use the console for find a JavaScript error?

JavaScript 5: How do I use the console for find a JavaScript error?

JavaScript 4: querySelector() vs querySelectorAll()

JavaScript 4: querySelector() vs querySelectorAll()

JavaScript 3: Write comments in javascript.

JavaScript 3: Write comments in javascript.

HTML and CSS (part 36): Pseudo class vs pseudo element

HTML and CSS (part 36): Pseudo class vs pseudo element

HTML and CSS (part 35): Subscripts

HTML and CSS (part 35): Subscripts

HTML and CSS (part 34): Superscripts

HTML and CSS (part 34): Superscripts

C# 27: Accept only number entries using try/catch - avoid string entry

C# 27: Accept only number entries using try/catch - avoid string entry

C# 26: Use the ternary (?:) and OR (||) operators to check if a number is outside/within a range.

C# 26: Use the ternary (?:) and OR (||) operators to check if a number is outside/within a range.

C# 25: Use the ternary (?:) and AND (&&) operators to check if a number is within/outside a range.

C# 25: Use the ternary (?:) and AND (&&) operators to check if a number is within/outside a range.

C# 24: Ternary (conditional) operator

C# 24: Ternary (conditional) operator

Python 59: Show a number in 3 decimal places without rounding

Python 59: Show a number in 3 decimal places without rounding

C++ 47: Check if entry is a number by catching an invalid_argument exception.

C++ 47: Check if entry is a number by catching an invalid_argument exception.

C++ 46: Convert a string to an integer using the stoi() function and Dev-C++ giving an error.

C++ 46: Convert a string to an integer using the stoi() function and Dev-C++ giving an error.

C++ 45: Check each letter of a string to check if its a number/letter using the isdigit() function.

C++ 45: Check each letter of a string to check if its a number/letter using the isdigit() function.