Kotlin
Java

Contributors

CS 124 is a collaborative project. We actively solicit contributions to our lesson content to both help explain concepts better and diversify the voice with which the course speaks.

The following 264 staff members have together made 1268 contributions to CS 124. Click on any icon to view their contribution.

Lesson Walkthrough
Solution Walkthrough
Lesson Video
MP Video

Staff

Carlos Inigo Fernandez

Carlos Inigo Fernandez

42 contributions

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Miguel Fernandez

Miguel Fernandez

31 contributions

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Jackie Chan

Jackie Chan

29 contributions

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Thomas Cai

Thomas Cai

27 contributions

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Rachanon Petchoo

Rachanon Petchoo

22 contributions

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Carl Edwards

Carl Edwards

21 contributions

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Arnav Sethi

Arnav Sethi

21 contributions

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Haosen Yao

Haosen Yao

20 contributions

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Benjamin Chang

Benjamin Chang

19 contributions

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Jacob Chang

Jacob Chang

19 contributions

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Ruisong Li

Ruisong Li

18 contributions

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Michael Rheintgen

Michael Rheintgen

18 contributions

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Aden Krakman

Aden Krakman

16 contributions

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Hyunho Kim

Hyunho Kim

16 contributions

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Rohan Gudipaty

Rohan Gudipaty

16 contributions

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Sam Erens

Sam Erens

15 contributions

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Tom Sui

Tom Sui

13 contributions

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Alistair Forsyth

Alistair Forsyth

13 contributions

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Yuxuan Chen

Yuxuan Chen

12 contributions

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Nancy Jia

Nancy Jia

12 contributions

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Ben Clarage

Ben Clarage

12 contributions

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Kaan Yigit

Kaan Yigit

12 contributions

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Matt Twyman

Matt Twyman

11 contributions

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Carolyn Zeng

Carolyn Zeng

11 contributions

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Boyang Sun

Boyang Sun

11 contributions

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Zuhair Ali

Zuhair Ali

10 contributions

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Zijing Wei

Zijing Wei

10 contributions

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Ahmed Hasan

Ahmed Hasan

10 contributions

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Collin Fox

Collin Fox

10 contributions

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Hrishikesh Kalyanaraman

Hrishikesh Kalyanaraman

10 contributions

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Patrick Cunningham

Patrick Cunningham

10 contributions

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Prith Balaji

Prith Balaji

9 contributions

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Niharika Bhattacharjee

Niharika Bhattacharjee

9 contributions

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Sriya Mikkilineni

Sriya Mikkilineni

9 contributions

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Adelia Solarman

Adelia Solarman

9 contributions

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Rohan Shah

Rohan Shah

9 contributions

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Nathaniel Zukowski

Nathaniel Zukowski

8 contributions

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Maaheen Maajed

Maaheen Maajed

8 contributions

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Cristian Flores

Cristian Flores

8 contributions

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Brendan Biernacki

Brendan Biernacki

8 contributions

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Anushree Tibrewal

Anushree Tibrewal

8 contributions

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Arghya Srivastav

Arghya Srivastav

8 contributions

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Anagha Shenoy

Anagha Shenoy

8 contributions

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Daniel Gutierrez

Daniel Gutierrez

8 contributions

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Alex Gong

Alex Gong

7 contributions

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Amirthavarshini Sureshbabu

Amirthavarshini Sureshbabu

7 contributions

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Lexi Ippolito

Lexi Ippolito

7 contributions

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Hania Dziurdzik

Hania Dziurdzik

7 contributions

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Meera Jagannathan

Meera Jagannathan

7 contributions

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Justin Kim

Justin Kim

7 contributions

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Chris Whamond

Chris Whamond

7 contributions

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Eugene Jang

Eugene Jang

6 contributions

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Grace Jia

Grace Jia

6 contributions

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Anakin Dey

Anakin Dey

6 contributions

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Ishika Awachat

Ishika Awachat

6 contributions

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Monica Para

Monica Para

6 contributions

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Saagar Kolachina

Saagar Kolachina

6 contributions

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Prem Dhoot

Prem Dhoot

6 contributions

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Anirudh Kumar

Anirudh Kumar

6 contributions

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Diego Taveras

Diego Taveras

6 contributions

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Zhuoang Tao

Zhuoang Tao

6 contributions

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Henry Tang

Henry Tang

6 contributions

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Harsh Deep

Harsh Deep

5 contributions

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Amaan Mirza

Amaan Mirza

5 contributions

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Jonathan You

Jonathan You

5 contributions

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Zetai Liu

Zetai Liu

5 contributions

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Arjun Prabhu

Arjun Prabhu

5 contributions

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Delu Zhao

Delu Zhao

5 contributions

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Zhilan Wang

Zhilan Wang

5 contributions

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Mike Cheng

Mike Cheng

5 contributions

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Sarah O'Sullivan

Sarah O'Sullivan

5 contributions

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Raul Higareda

Raul Higareda

5 contributions

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Utkarsh Prasad

Utkarsh Prasad

5 contributions

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Aashi Tyagi

Aashi Tyagi

5 contributions

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Daniel Song

Daniel Song

5 contributions

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Bilal Karim

Bilal Karim

5 contributions

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Kevin Liu

Kevin Liu

5 contributions

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Leo Li

Leo Li

4 contributions

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Daniel Rugutt

Daniel Rugutt

4 contributions

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Youngmin Jeon

Youngmin Jeon

4 contributions

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Jongwoo Jeon

Jongwoo Jeon

4 contributions

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Rylan Turner

Rylan Turner

4 contributions

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Rahul Kalle

Rahul Kalle

4 contributions

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Matt Yang

Matt Yang

4 contributions

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Aditya Joshi

Aditya Joshi

4 contributions

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Saurav Chittal

Saurav Chittal

4 contributions

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Gargi Balasubramaniam

Gargi Balasubramaniam

4 contributions

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Charlie Rivera

Charlie Rivera

4 contributions

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Arnav Motwani

Arnav Motwani

4 contributions

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Freddy Platinus

Freddy Platinus

4 contributions

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Leena Abdelrahman

Leena Abdelrahman

4 contributions

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Ashley Wang

Ashley Wang

4 contributions

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Anuprova Bhowmik

Anuprova Bhowmik

4 contributions

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Daniyal Rana

Daniyal Rana

4 contributions

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Samuel Schapiro

Samuel Schapiro

4 contributions

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Larry Liao

Larry Liao

4 contributions

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Prerana Singh

Prerana Singh

4 contributions

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Dj Figueiredo

Dj Figueiredo

4 contributions

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Yiming Niu

Yiming Niu

4 contributions

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Christopher Sahyouni

Christopher Sahyouni

4 contributions

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Chengze Shen

Chengze Shen

3 contributions

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Ananya Subramanian

Ananya Subramanian

3 contributions

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Ojas Upalekar

Ojas Upalekar

3 contributions

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Tianyun Zhang

Tianyun Zhang

3 contributions

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Violetta Dabros

Violetta Dabros

3 contributions

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Anish Meka

Anish Meka

3 contributions

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Yuhua Weng

Yuhua Weng

3 contributions

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Yu He

Yu He

3 contributions

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Kavin Krishnasami

Kavin Krishnasami

3 contributions

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Ruozhen Yang

Ruozhen Yang

3 contributions

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Bernie Zhu

Bernie Zhu

3 contributions

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Rachel Huang

Rachel Huang

3 contributions

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Di Liang

Di Liang

3 contributions

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Sana Madhavan

Sana Madhavan

3 contributions

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Archna Sobti

Archna Sobti

3 contributions

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Milosz Dabrowski

Milosz Dabrowski

3 contributions

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Apramey Hosahalli

Apramey Hosahalli

3 contributions

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Serena Trika

Serena Trika

3 contributions

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Palak Purwar

Palak Purwar

3 contributions

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Vansh Sikka

Vansh Sikka

3 contributions

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Eric Ji

Eric Ji

3 contributions

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Meghna Mavila

Meghna Mavila

3 contributions

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Akul Gupta

Akul Gupta

3 contributions

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Nishit Samarth

Nishit Samarth

3 contributions

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Havish Rani

Havish Rani

3 contributions

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Serlina Ku

Serlina Ku

3 contributions

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Joseph Dubravec

Joseph Dubravec

3 contributions

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Samarth Taneja

Samarth Taneja

3 contributions

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Preston Chao

Preston Chao

3 contributions

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Alyssa Daniels

Alyssa Daniels

3 contributions

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Meghna Gaddam

Meghna Gaddam

3 contributions

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Martina Perez Zuleta

Martina Perez Zuleta

3 contributions

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Jenny Yang

Jenny Yang

3 contributions

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Wendy Ruan

Wendy Ruan

3 contributions

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Ananyaa Tanwar

Ananyaa Tanwar

3 contributions

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3
Eunice Leung

Eunice Leung

3 contributions

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James Rockey

James Rockey

3 contributions

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3
Helen Ilkiu

Helen Ilkiu

3 contributions

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David Yang

David Yang

3 contributions

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Will Otani

Will Otani

3 contributions

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Josh Joseph

Josh Joseph

3 contributions

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3
Vansh Gupta

Vansh Gupta

3 contributions

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3
Aditi Khanna

Aditi Khanna

3 contributions

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3
Athena Fung

Athena Fung

3 contributions

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3
David Ruvinskiy

David Ruvinskiy

3 contributions

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3
Neel Khare

Neel Khare

3 contributions

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3
Gabriel Grais

Gabriel Grais

3 contributions

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3
Andrew Kim

Andrew Kim

3 contributions

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3
Lenna Park

Lenna Park

3 contributions

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3
Juyoung Choi

Juyoung Choi

3 contributions

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3
Becky Blake

Becky Blake

3 contributions

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3
Aarav Mande

Aarav Mande

3 contributions

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3
Zhaoyang Chen

Zhaoyang Chen

3 contributions

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3
Idrees Mohammed

Idrees Mohammed

3 contributions

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3
Anish Thiriveedhi

Anish Thiriveedhi

3 contributions

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3
Chris Munoz

Chris Munoz

3 contributions

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3
Stefan Ramli

Stefan Ramli

3 contributions

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3
Jane Liu

Jane Liu

3 contributions

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3
Jainil Modi

Jainil Modi

3 contributions

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3
Andrew Lum

Andrew Lum

3 contributions

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3
Eduardo Martinez

Eduardo Martinez

3 contributions

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3
Savannah Holly

Savannah Holly

3 contributions

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3
Tyler Cushing

Tyler Cushing

3 contributions

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3
Kushal Agarwal

Kushal Agarwal

3 contributions

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3
Joy Wan

Joy Wan

3 contributions

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3
Qingping Ye

Qingping Ye

3 contributions

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3
Ayaan Jabbar

Ayaan Jabbar

3 contributions

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3
Lina Mei

Lina Mei

3 contributions

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3
Warren Li

Warren Li

3 contributions

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3
Elisa Carrillo

Elisa Carrillo

3 contributions

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3
Louis Qian

Louis Qian

3 contributions

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3
Ishq Gupta

Ishq Gupta

3 contributions

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3
Elijah Song

Elijah Song

3 contributions

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3
Junhao Xiong

Junhao Xiong

3 contributions

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3
Mick Enev

Mick Enev

3 contributions

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2
3
Ken Kim

Ken Kim

2 contributions

1
2
Adrian Russo

Adrian Russo

2 contributions

1
2
Reed Huang

Reed Huang

2 contributions

1
2
Daniel Dilan

Daniel Dilan

2 contributions

1
2
Edmon Guan

Edmon Guan

2 contributions

1
2
Alekhya Nathella

Alekhya Nathella

2 contributions

1
2
Samuel Hurh

Samuel Hurh

2 contributions

1
2
Sarod Nori

Sarod Nori

2 contributions

1
2
Ishan Khandelwal

Ishan Khandelwal

2 contributions

1
2
Sabrina Tu

Sabrina Tu

2 contributions

1
2
Rohan Sathe

Rohan Sathe

2 contributions

1
2
Kangyu Feng

Kangyu Feng

2 contributions

1
2
Harshit Bagla

Harshit Bagla

2 contributions

1
2
Brenda Hariyanto

Brenda Hariyanto

2 contributions

1
2
Ayah Jaber

Ayah Jaber

2 contributions

1
2
Alex Che

Alex Che

2 contributions

1
2
Jake Vile

Jake Vile

2 contributions

1
2
Tanay Pareek

Tanay Pareek

2 contributions

1
2
Jimmy Berg

Jimmy Berg

2 contributions

1
2
Brandon Dinh

Brandon Dinh

2 contributions

1
2
Janani Jayanth

Janani Jayanth

2 contributions

1
2
Emmanuel Buabeng

Emmanuel Buabeng

2 contributions

1
2
Armin Rafieyan

Armin Rafieyan

2 contributions

1
2
Tina Dou

Tina Dou

2 contributions

1
2
Vaibhav Keshari

Vaibhav Keshari

2 contributions

1
2
Ricky Chen

Ricky Chen

2 contributions

1
2
Shao-Min Yeh

Shao-Min Yeh

2 contributions

1
2
Yiche Liu

Yiche Liu

2 contributions

1
2
Anna Fedczuk

Anna Fedczuk

2 contributions

1
2
Carlos Conley

Carlos Conley

2 contributions

1
2
Allen Guo

Allen Guo

2 contributions

1
2
Anna Liu

Anna Liu

2 contributions

1
2
Alma Zirojevic

Alma Zirojevic

2 contributions

1
2
Abhi Vinnakota

Abhi Vinnakota

2 contributions

1
2
Rahul Bhatt

Rahul Bhatt

2 contributions

1
2
Dawn Lim

Dawn Lim

2 contributions

1
2
Joseph Chan

Joseph Chan

2 contributions

1
2
Ziyin Wang

Ziyin Wang

2 contributions

2
Yasmine Munoz

Yasmine Munoz

2 contributions

1
2
Jier Miao

Jier Miao

2 contributions

1
2
Tianyi Huang

Tianyi Huang

2 contributions

1
2
Cloud Li

Cloud Li

2 contributions

1
2
Zoe Lu

Zoe Lu

2 contributions

1
2
Kaiwen Mo

Kaiwen Mo

2 contributions

1
2
Conor Cunningham

Conor Cunningham

2 contributions

1
2
Matthew McCarthy

Matthew McCarthy

2 contributions

1
2
Shruthi Jaganathan

Shruthi Jaganathan

1 contribution

1
Rohan Khatu

Rohan Khatu

1 contribution

1
Blair Wang

Blair Wang

1 contribution

1
Raghav Anand

Raghav Anand

1 contribution

1
Siyuan Ding

Siyuan Ding

1 contribution

1
Anish Jampana

Anish Jampana

1 contribution

1
Tongyun Huang

Tongyun Huang

1 contribution

1
Cindy Su

Cindy Su

1 contribution

1
Matthew Czech

Matthew Czech

1 contribution

1
Thomas Zelichowski

Thomas Zelichowski

1 contribution

1
Vinayak Manepalli

Vinayak Manepalli

1 contribution

1
Mayank Hirani

Mayank Hirani

1 contribution

1
Anisha Raja

Anisha Raja

1 contribution

1
Aadarsh Krishnan

Aadarsh Krishnan

1 contribution

1
Lou Zeh

Lou Zeh

1 contribution

1
Dazhen Chen

Dazhen Chen

1 contribution

1
Nicholas Jung

Nicholas Jung

1 contribution

1
Juan David Campolargo Hoyos

Juan David Campolargo Hoyos

1 contribution

1
Ethan Miranda

Ethan Miranda

1 contribution

1
Meghan Lu

Meghan Lu

1 contribution

1
Aryan Vakharia

Aryan Vakharia

1 contribution

1
Varun Shroff

Varun Shroff

1 contribution

1
Adrian Rodriguez

Adrian Rodriguez

1 contribution

1
Jason Barnett

Jason Barnett

1 contribution

1
Aditya Shreenivas Kunte

Aditya Shreenivas Kunte

1 contribution

1
Edward Huang

Edward Huang

1 contribution

1
Siddharth Tangri

Siddharth Tangri

1 contribution

1
Nehal Tangudu

Nehal Tangudu

1 contribution

1
Jason Wu

Jason Wu

1 contribution

1
Aaron Taub

Aaron Taub

1 contribution

1
Connor Flynn

Connor Flynn

1 contribution

1
Keshav Trikha

Keshav Trikha

1 contribution

1
Jessica Ho

Jessica Ho

1 contribution

1
Hamiz Anjum

Hamiz Anjum

1 contribution

1
Simon Li

Simon Li

1 contribution

1
Sally Xue

Sally Xue

1 contribution

1
Ram Goenka

Ram Goenka

1 contribution

1
Ryan Wang

Ryan Wang

1 contribution

1
Jake Cumberland

Jake Cumberland

1 contribution

1
Shoorsen Gandhi

Shoorsen Gandhi

1 contribution

1
Gautham Jeyasankarane

Gautham Jeyasankarane

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Joe Tamulaitis

Joe Tamulaitis

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Tracy Li

Tracy Li

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Instructors

Geoffrey Challen

Geoffrey Challen

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Colleen Lewis

Colleen Lewis

347 contributions

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