Selected Topics in IT

C++ 10: Let user specify the size of array, enter their values, calculate and print their average.

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

Java 5: Casting int to double, and formatting a double to 2 decimal places

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

Java 102: A simple colour picker using JavaFX

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

Python 54: Create a class, instantiate an object and find its type using the type function.

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

Java 76: The isEmpty() method

Python 37: Find odd/even numbers using the AND (&) bitwise operator.

HTML and CSS (part 22): Change list styles for ordered lists/unordered lists.

Java 43: Prevent division by zero from happening using if statement.

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

HTML and CSS (part 23): Position style for list items for ordered lists/unordered lists.

HTML and CSS (part 32): How to add a comment in CSS

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

Java 82: Using the split method to get multiple user input separated by a comma

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

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

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

Python 29: How to check if a list is not empty in python

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

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

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

Java 6: Using for loops to get multiple user input

Java 81: Using the split method to get multiple user input separated by a space.

C++ 49: Dangling pointer versus memory leaks

Python 40: How the XOR (^) bitwise operator works.

Python 19: Defining a function in Python

Python 21: Make sure user enters a number instead of text entry (using isDigit())

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

HTML and CSS (part 12): Validate CSS using the W3C CSS Validation Service

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

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

Python 20: A function that takes an argument and return a string value

Java 71: Default vs parameterized constructors and calling the super class constructor

Java 4: Finding the average of 4 numbers entered by user in eclipse

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

Java 45: Handle InputMismatchException when string is input instead of a number using if-statements

Java 115: NumberFormatException versus InputMismatchException

Java 32: Check if a string is contained in another string using the contains method

JavaScript 2: From internal to external JavaScript, innerHtml, and the defer attribute.

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

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

Python 11: Nested for loops to print a square shape using asterisks (*) and print on the same line

Python 57: Search for an item in a list of strings using a string – not an index

Java 15: Storing user input into string arrays, in eclipse.

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

C# 3: Convert a string into a double

Python 22: Make sure user enters a float value instead of text entry (using try-except)