Канал: Bill Barnum

A Wizard Explains Iteration and Recursion (Computer Science)

A Wizard Explains Iteration and Recursion (Computer Science)

A Wizard's Guide To While Loops (Java Programming)

A Wizard's Guide To While Loops (Java Programming)

2D Arrays (Java Tutorial)

2D Arrays (Java Tutorial)

Inheritance and Polymorphism (Java Tutorial)

Inheritance and Polymorphism (Java Tutorial)

AP Computer Science A - Unit 8: 2D Arrays

AP Computer Science A - Unit 8: 2D Arrays

Temple of Arrays - AP Computer Science A FRQ

Temple of Arrays - AP Computer Science A FRQ

Computer Science Inverts the Normal

Computer Science Inverts the Normal

Teach Virtual Reality Programming With Alice 3

Teach Virtual Reality Programming With Alice 3

Create Task - Plagiarism Policy (AP Computer Science Principles - Updated for 2024)

Create Task - Plagiarism Policy (AP Computer Science Principles - Updated for 2024)

Citing Code And Resources For The Create Task (Spring 2024) (AP Computer Science Principles)

Citing Code And Resources For The Create Task (Spring 2024) (AP Computer Science Principles)

Create Task - Project & Code Walkthrough (AP Computer Science Principles - Updated for 2024)

Create Task - Project & Code Walkthrough (AP Computer Science Principles - Updated for 2024)

Traversing a Java ArrayList (Printing an ArrayList)

Traversing a Java ArrayList (Printing an ArrayList)

AP Computer Science A - Unit 7: ArrayLists

AP Computer Science A - Unit 7: ArrayLists

Convert an Array to an ArrayList (Java Tutorial)

Convert an Array to an ArrayList (Java Tutorial)

Search And Remove From ArrayLists (Java Tutorial)

Search And Remove From ArrayLists (Java Tutorial)

AP Computer Science A - Unit 9: Inheritance

AP Computer Science A - Unit 9: Inheritance

Java Constructor (Part 1) - Standalone Constructors

Java Constructor (Part 1) - Standalone Constructors

Java Constructor (Part 3) - Passing Data to a Superclass Constructor

Java Constructor (Part 3) - Passing Data to a Superclass Constructor

Polymorphism (Java Tutorial)

Polymorphism (Java Tutorial)

Inheritance in Java (Part 4 - Accessing Private Fields in a Superclass)

Inheritance in Java (Part 4 - Accessing Private Fields in a Superclass)

Inheritance in Java (Part 3 - Calling Methods in a Superclass)

Inheritance in Java (Part 3 - Calling Methods in a Superclass)

Inheritance in Java (Part 2 - Overriding Methods)

Inheritance in Java (Part 2 - Overriding Methods)

Inheritance in Java (Part 1 - Inheriting Methods)

Inheritance in Java (Part 1 - Inheriting Methods)

Java Constructor (Part 2) - Calling Constructors in a Superclass

Java Constructor (Part 2) - Calling Constructors in a Superclass

Operator Precedence / Order Of Operation (Java Tutorial)

Operator Precedence / Order Of Operation (Java Tutorial)

String Class (Java Tutorial)

String Class (Java Tutorial)

Arrays (Java Tutorial)

Arrays (Java Tutorial)

Java ArrayList

Java ArrayList

A Knight's Guide To For Loops (Java Programming)

A Knight's Guide To For Loops (Java Programming)

AP Computer Science A - Unit 10: Recursion

AP Computer Science A - Unit 10: Recursion

Head Recursion and Tail Recursion

Head Recursion and Tail Recursion

A Knight's Guide To For Loops (Java Programming)

A Knight's Guide To For Loops (Java Programming)

Tree Recursion and Binary Recursion (Computer Science)

Tree Recursion and Binary Recursion (Computer Science)

AP CSA - 2021 FRQ Problem 1 - WordMatch (Exam Practice and Review)

AP CSA - 2021 FRQ Problem 1 - WordMatch (Exam Practice and Review)

ChatGPT vs Java: An AI Experiment

ChatGPT vs Java: An AI Experiment

Create Task (OLD VERSION 2023) - Free Response & Rubric Walkthrough (AP Computer Science Principles)

Create Task (OLD VERSION 2023) - Free Response & Rubric Walkthrough (AP Computer Science Principles)

Practice Recursion Problem

Practice Recursion Problem

Practice Binary Recursion Problem (Tree Recursion)

Practice Binary Recursion Problem (Tree Recursion)

Tricky Practice Java Recursion Problem (Explanation And Walkthrough)

Tricky Practice Java Recursion Problem (Explanation And Walkthrough)

Understand And Fix A Java Null Pointer Exception (Full Explanation)

Understand And Fix A Java Null Pointer Exception (Full Explanation)

Identifier Expected Error (Java Tutorial)

Identifier Expected Error (Java Tutorial)

substring And length (Java String Methods)

substring And length (Java String Methods)

Sum Of Odds In Java (1 to 100)

Sum Of Odds In Java (1 to 100)

Using Java Classes and Objects

Using Java Classes and Objects

Recursion Explained

Recursion Explained

Citing Code And Resources (OLD VERSION 2022) For The Create Task (AP Computer Science Principles)

Citing Code And Resources (OLD VERSION 2022) For The Create Task (AP Computer Science Principles)

Sequencing, Selection, And Iteration - Block Code - App Lab (Code.org)

Sequencing, Selection, And Iteration - Block Code - App Lab (Code.org)

Sequencing, Selection, And Iteration - Text Code - App Lab (Code.org)

Sequencing, Selection, And Iteration - Text Code - App Lab (Code.org)

Create Task (OLD VERSION 2022) - Program Walkthrough (AP Computer Science Principles)

Create Task (OLD VERSION 2022) - Program Walkthrough (AP Computer Science Principles)

Parameters and Abstraction - Block Code - App Lab (Code.org)

Parameters and Abstraction - Block Code - App Lab (Code.org)

Parameters and Abstraction - Text Code - App Lab (Code.org)

Parameters and Abstraction - Text Code - App Lab (Code.org)

AP Computer Science A - Unit 6: Arrays

AP Computer Science A - Unit 6: Arrays

Display A List (Array) On The Screen - Block Code - Code.org (App Lab)

Display A List (Array) On The Screen - Block Code - Code.org (App Lab)

Display A List (Array) On The Screen - Text Code - Code.org (App Lab)

Display A List (Array) On The Screen - Text Code - Code.org (App Lab)

Filter A List (Array) - Block Code - Code.org (App Lab)

Filter A List (Array) - Block Code - Code.org (App Lab)

Filter A List (Array) - Text Code - Code.org (App Lab)

Filter A List (Array) - Text Code - Code.org (App Lab)

For Loop - App Lab (Code.org)

For Loop - App Lab (Code.org)

App Lab (Code.org) - Get Data From A Text Box (Block Based Code)

App Lab (Code.org) - Get Data From A Text Box (Block Based Code)

App Lab (Code.org) - Get Data From A Text Box (Text Based Code)

App Lab (Code.org) - Get Data From A Text Box (Text Based Code)

AP Computer Science A - Unit 5: Writing Classes

AP Computer Science A - Unit 5: Writing Classes

Declare A Method (Java Tutorial)

Declare A Method (Java Tutorial)

Hexadecimal to Octal (Quick and Easy)

Hexadecimal to Octal (Quick and Easy)

Octal to Hexadecimal (Quick and Easy)

Octal to Hexadecimal (Quick and Easy)

AP Computer Science A - Unit 4: Iteration and Loops

AP Computer Science A - Unit 4: Iteration and Loops

Nested Loops (Java Tutorial)

Nested Loops (Java Tutorial)

AP Computer Science A - Unit 3: Boolean Expressions And if Statements

AP Computer Science A - Unit 3: Boolean Expressions And if Statements

App Lab (Code.org) - Get Data From A Table (Block Based Code)

App Lab (Code.org) - Get Data From A Table (Block Based Code)

App Lab (Code.org) - Get Data From A Table (Text Based Code)

App Lab (Code.org) - Get Data From A Table (Text Based Code)

Reverse A String (Java Tutorial)

Reverse A String (Java Tutorial)

Find The Minimum Number In A Java Array

Find The Minimum Number In A Java Array

Find The Maximum Number In A Java Array

Find The Maximum Number In A Java Array

Bubble Sort (Java Tutorial)

Bubble Sort (Java Tutorial)

Alice 3 Tutorial - #05 - Object Markers And Camera Markers

Alice 3 Tutorial - #05 - Object Markers And Camera Markers

AP Computer Science A - Unit 2: Using Objects

AP Computer Science A - Unit 2: Using Objects

Using Classes & Objects (Java Tutorial)*

Using Classes & Objects (Java Tutorial)*

AP Computer Science A - Unit 1: Primitive Types

AP Computer Science A - Unit 1: Primitive Types

Merge Sort Algorithm

Merge Sort Algorithm

Java Tutorial for Beginners

Java Tutorial for Beginners

Getters & Setters (Java Tutorial)

Getters & Setters (Java Tutorial)

Traversing an Array (Java Tutorial)

Traversing an Array (Java Tutorial)

Remote Quiz Instructions Using Screencastify Submit

Remote Quiz Instructions Using Screencastify Submit

Alice 3 Tutorial - #14 - If-Else Part 2

Alice 3 Tutorial - #14 - If-Else Part 2

Escape Sequence (Java Tutorial)

Escape Sequence (Java Tutorial)

Cannot Find Symbol Error (Java Tutorial)

Cannot Find Symbol Error (Java Tutorial)

ArrayIndexOutOfBoundsException Error (Java Tutorial)

ArrayIndexOutOfBoundsException Error (Java Tutorial)

Missing Return Statement Error (Java Tutorial)

Missing Return Statement Error (Java Tutorial)

Reached End Of File While Parsing Error (Java Tutorial)

Reached End Of File While Parsing Error (Java Tutorial)

Error: Cannot Be Dereferenced (Java Tutorial)

Error: Cannot Be Dereferenced (Java Tutorial)

Recursion In Java

Recursion In Java

Java Arrays (1D and 2D) (Java Tutorial)

Java Arrays (1D and 2D) (Java Tutorial)

Learn Java In 3 Hours

Learn Java In 3 Hours

App Lab (Code.org) 🎰 Slot Machine Game Tutorial 🎰

App Lab (Code.org) 🎰 Slot Machine Game Tutorial 🎰

Submitting Code for AP CSA 2020 Online Exam (AP Computer Science A) V4

Submitting Code for AP CSA 2020 Online Exam (AP Computer Science A) V4

Scope and Lifetime of Variables (Java Tutorial)

Scope and Lifetime of Variables (Java Tutorial)

Checking Equality in Java ( == vs equals method )

Checking Equality in Java ( == vs equals method )

(SEE LINK FOR NEW VERSION) Citing Code For The Create Task In AP Computer Science Principles

(SEE LINK FOR NEW VERSION) Citing Code For The Create Task In AP Computer Science Principles

Alice 3 Programming Tutorials (Introduction)

Alice 3 Programming Tutorials (Introduction)

Alice 3 Tutorial - #07- Making A Synchronized Dance Using Inheritance

Alice 3 Tutorial - #07- Making A Synchronized Dance Using Inheritance

Alice 3 Tutorial - #02 - Moving, Resizing, Changing Color, And Changing Transparency

Alice 3 Tutorial - #02 - Moving, Resizing, Changing Color, And Changing Transparency

Alice 3 Tutorial - #03 - Moving Individual Body Parts

Alice 3 Tutorial - #03 - Moving Individual Body Parts

Alice 3 Tutorial - #01 - Your First Alice Program

Alice 3 Tutorial - #01 - Your First Alice Program

= vs == vs === in App Lab (Code.org)

= vs == vs === in App Lab (Code.org)

App Lab (Code.org) 🚶 Moving On A Scrolling Background 🚶

App Lab (Code.org) 🚶 Moving On A Scrolling Background 🚶

De Morgan's Laws For Computer Science and Programming

De Morgan's Laws For Computer Science and Programming

Traversing a 2 Dimensional Array (Java Tutorial)

Traversing a 2 Dimensional Array (Java Tutorial)

Java Inheritance Introduction

Java Inheritance Introduction

Java Recursion Introduction

Java Recursion Introduction

Casting a Primitive and Overflow (Java Tutorial)

Casting a Primitive and Overflow (Java Tutorial)

Scanner Class (Java Tutorial)

Scanner Class (Java Tutorial)

App Lab (Code.org) Storing Data Permanently With The Data Tab

App Lab (Code.org) Storing Data Permanently With The Data Tab

App Lab (Code.org) Display 📆 Time and Date 📆

App Lab (Code.org) Display 📆 Time and Date 📆

App Lab (Code.org) ✔️ Move to Mouse Click ✔️ Game Tutorial

App Lab (Code.org) ✔️ Move to Mouse Click ✔️ Game Tutorial

App Lab (Code.org) 🐾 Wandering Game Character 🐾 Tutorial

App Lab (Code.org) 🐾 Wandering Game Character 🐾 Tutorial

Selection Sort (Java Tutorial)

Selection Sort (Java Tutorial)

Insertion Sort

Insertion Sort

Selection Sort Algorithm

Selection Sort Algorithm

Math Class (Java Tutorial)

Math Class (Java Tutorial)

Abstract Classes and Methods (Java Tutorial)

Abstract Classes and Methods (Java Tutorial)

Interface (Java Tutorial)

Interface (Java Tutorial)

Random Numbers With Math.random() (Java Tutorial)

Random Numbers With Math.random() (Java Tutorial)

Static Methods and Non Static Methods (Java Tutorial)*

Static Methods and Non Static Methods (Java Tutorial)*

Methods (Java Tutorial)

Methods (Java Tutorial)

Nested if, else if, and else (Java Tutorial)

Nested if, else if, and else (Java Tutorial)

Binary Search (Java Tutorial)

Binary Search (Java Tutorial)

Linear Search (Sequential Search) in Java

Linear Search (Sequential Search) in Java

App Lab (Code.org) 🚀 Space Shooter Game 🚀 Tutorial

App Lab (Code.org) 🚀 Space Shooter Game 🚀 Tutorial

Head Recursion and Tail Recursion in Java

Head Recursion and Tail Recursion in Java

App Lab (Code.org) Game and App ⏲️ Timer ⏲️

App Lab (Code.org) Game and App ⏲️ Timer ⏲️

Binary Recursion in Java

Binary Recursion in Java

Alice 3 Tutorial - #18 - Parameter Variable

Alice 3 Tutorial - #18 - Parameter Variable

Calculating Factorials Recursively in Java (Recursion Tutorial Part 2)

Calculating Factorials Recursively in Java (Recursion Tutorial Part 2)

04 - App Lab (Code.org) 🎧 Key Press Listeners 🎧 and Object Movement

04 - App Lab (Code.org) 🎧 Key Press Listeners 🎧 and Object Movement

02 - App Lab (Code.org) Finding 🎨 Game Art 🎨

02 - App Lab (Code.org) Finding 🎨 Game Art 🎨

08 - Tweaking and Sharing a Program in App Lab (Code.org)

08 - Tweaking and Sharing a Program in App Lab (Code.org)

03 - App Lab (Code.org) 🚧 Setting Up The Project 🚧

03 - App Lab (Code.org) 🚧 Setting Up The Project 🚧

01 - App Lab (Code.org) Make an 🕹️ Arcade Game 🕹️

01 - App Lab (Code.org) Make an 🕹️ Arcade Game 🕹️

06 - App Lab (Code.org) Using a ⏱️ Timed Loop ⏱️ to Move Objects

06 - App Lab (Code.org) Using a ⏱️ Timed Loop ⏱️ to Move Objects

05 - App Lab (Code.org) 🎁 Wrapping Images 🎁 Around the Edge of the Screen

05 - App Lab (Code.org) 🎁 Wrapping Images 🎁 Around the Edge of the Screen

07 - App Lab (Code.org) 💥 Collision Detection 💥

07 - App Lab (Code.org) 💥 Collision Detection 💥

What is recursion? (Recursion Tutorial Part 1)

What is recursion? (Recursion Tutorial Part 1)

Casting an Object (Upcasting and Downcasting) - Java Tutorial

Casting an Object (Upcasting and Downcasting) - Java Tutorial

ArrayLists in Java - Part 2 (Wrapper Classes)

ArrayLists in Java - Part 2 (Wrapper Classes)

ArrayLists in Java - Part 1

ArrayLists in Java - Part 1

Prefix and Postfix (++x vs x++) in Java

Prefix and Postfix (++x vs x++) in Java

Moss Plagiarism Checker with Windows GUI

Moss Plagiarism Checker with Windows GUI

if, else if, and else (Java Tutorial)

if, else if, and else (Java Tutorial)

While and Do While Loops (Java Tutorial)

While and Do While Loops (Java Tutorial)

Swapping Variable Values (Java Tutorial)

Swapping Variable Values (Java Tutorial)

Reversing the Values in an Array (Java Tutorial)

Reversing the Values in an Array (Java Tutorial)

For Loop (Java Tutorial)

For Loop (Java Tutorial)

Alice 3 Tutorial - #15 - While Loop

Alice 3 Tutorial - #15 - While Loop

Alice 3 Tutorial - #12 - Do In Order And Do Together

Alice 3 Tutorial - #12 - Do In Order And Do Together

Alice 3 Tutorial - #11 - Count Loop

Alice 3 Tutorial - #11 - Count Loop

Primitive Data Types (Java Tutorial)

Primitive Data Types (Java Tutorial)

Declaring and Initializing a Variable (Java Tutorial)

Declaring and Initializing a Variable (Java Tutorial)

AP Computer Science A (Java Tutorial)

AP Computer Science A (Java Tutorial)

Boolean Expressions (Java Tutorial)

Boolean Expressions (Java Tutorial)

int and double Division (Java Tutorial)

int and double Division (Java Tutorial)

Arithmetic and Unary Operators (Java Tutorial)

Arithmetic and Unary Operators (Java Tutorial)

What is null and a null pointer exception? (Java Tutorial)

What is null and a null pointer exception? (Java Tutorial)

Polymorphism (Java Tutorial)

Polymorphism (Java Tutorial)

Objects and References with Polymorphism (Java Tutorial)

Objects and References with Polymorphism (Java Tutorial)

Method Overloading (Java Tutorial)

Method Overloading (Java Tutorial)

Primitive and Reference (Object) Types in Memory (Java Tutorial)

Primitive and Reference (Object) Types in Memory (Java Tutorial)

final Keyword (Java Tutorial)

final Keyword (Java Tutorial)

Compressing Java Files into a Zip

Compressing Java Files into a Zip

Alice 3 Tutorial - #04 - Camera Controls

Alice 3 Tutorial - #04 - Camera Controls

Java Constructor (Part 1)

Java Constructor (Part 1)

"this" Keyword (Java Tutorial)

"this" Keyword (Java Tutorial)

Writing Classes and Objects (Java Tutorial)

Writing Classes and Objects (Java Tutorial)

Java Fields (Class Variables & Instance Variables)*

Java Fields (Class Variables & Instance Variables)*

Static Methods and Non Static Methods (Java Tutorial) **OLD**

Static Methods and Non Static Methods (Java Tutorial) OLD

Alice 3 Tutorial - #10 - Generate Random Numbers

Alice 3 Tutorial - #10 - Generate Random Numbers

Alice 3 Tutorial - #24 - Increasing or Decreasing a Property Variable

Alice 3 Tutorial - #24 - Increasing or Decreasing a Property Variable

Alice 3 Tutorial - #08 - Declare A Variable

Alice 3 Tutorial - #08 - Declare A Variable

Alice 3 Tutorial - #20 - Arrow And Key Press Listeners

Alice 3 Tutorial - #20 - Arrow And Key Press Listeners

Alice 3 Tutorial - #19 - Arrays

Alice 3 Tutorial - #19 - Arrays

Alice 3 Tutorial - #09 - Take User Input

Alice 3 Tutorial - #09 - Take User Input

Alice 3 Tutorial - #23 - Getter And Setter Methods

Alice 3 Tutorial - #23 - Getter And Setter Methods

Alice 3 Tutorial - #13 - If-Else Part 1

Alice 3 Tutorial - #13 - If-Else Part 1

Alice 3 Tutorial - #17 - Add and Concatenate

Alice 3 Tutorial - #17 - Add and Concatenate

Alice 3 Tutorial - #06 - Create A Method (Procedure)

Alice 3 Tutorial - #06 - Create A Method (Procedure)

Alice 3 Tutorial - #22 - Property Variable

Alice 3 Tutorial - #22 - Property Variable

Alice 3 Tutorial - #16 - Create A Function

Alice 3 Tutorial - #16 - Create A Function

Alice 3 Tutorial - #21 - Mouse Click Listener

Alice 3 Tutorial - #21 - Mouse Click Listener

Scratch - Making a Maze Game - 05 - Drawing the Maze

Scratch - Making a Maze Game - 05 - Drawing the Maze

Scratch - Making a Maze Game - 02 - Creating a Health Variable

Scratch - Making a Maze Game - 02 - Creating a Health Variable

Scratch - Making a Maze Game - 06 - Loosing Health

Scratch - Making a Maze Game - 06 - Loosing Health

Scratch - Making a Maze Game - 01 - Making a Character

Scratch - Making a Maze Game - 01 - Making a Character

Scratch - Making a Maze Game - 07 - Winning the Game

Scratch - Making a Maze Game - 07 - Winning the Game

Scratch - Making a Maze Game - 03 - Making the Character Move Forward

Scratch - Making a Maze Game - 03 - Making the Character Move Forward

Scratch - Making a Maze Game - 04 - Turning Left & Right

Scratch - Making a Maze Game - 04 - Turning Left & Right

Scratch - Make an Asteroids Game - 10 - Adjusting The Speed

Scratch - Make an Asteroids Game - 10 - Adjusting The Speed

Scratch - Make an Asteroids Game - 11 - Killing Your Character

Scratch - Make an Asteroids Game - 11 - Killing Your Character

Scratch - Make an Asteroids Game - 13 - Making Your Weapon Fire

Scratch - Make an Asteroids Game - 13 - Making Your Weapon Fire

Scratch - Make an Asteroids Game - 01 - Making a Character

Scratch - Make an Asteroids Game - 01 - Making a Character

Scratch - Make an Asteroids Game - 14 - Creating a Scoring Variable

Scratch - Make an Asteroids Game - 14 - Creating a Scoring Variable

Scratch - Make an Asteroids Game - 05 - Creating Enemies

Scratch - Make an Asteroids Game - 05 - Creating Enemies

Scratch - Make an Asteroids Game - 16 - Playing The Game

Scratch - Make an Asteroids Game - 16 - Playing The Game

Scratch - Make an Asteroids Game - 07 - Making the Enemies Move Around

Scratch - Make an Asteroids Game - 07 - Making the Enemies Move Around