Videos

In this video, we will look at Codingbat Python exercises involving strings and some potential solutions. Please attempt the other nine.

• https://codingbat.com/python/String-1 Codingbat.com Python String-1
• https://docs.python.org/3/tutorial/introduction.html#strings String literals
• https://www.pythoncentral.io/how-to-get-a-substring-from-a-string-in-python-slicing-strings/ Slicing strings

In this video, we look at the RedCross / RedTarget assignment in repl.it.

• http://ow.ly/gZhP30ozTZm RedCross / RedTarget assignment
• https://pastebin.com/NQcCsfRZ Main.java
• https://pastebin.com/UCUKMSqB RedCross.java
• https://pastebin.com/dJjzzHvr RedTarget.java

Don't forget to check the notes on the class website.

Watch this and all Loom videos in full screen on the Loom website.

• https://www.loom.com/share/bfcd18e7ea1f49cc8bab303b7000c7f6

This video describes a template for animation in MIT App Inventor.

• http://ai2.appinventor.mit.edu/ MIT App Inventor
• http://t.ly/wZKG0 AnimationTemplate.aia (download)
• https://i.makeagif.com/media/5-29-2016/jtSBFk.gif The .GIF

Solve the mathematical problem of Slaying the Dragon of EVIL.

• https://colab.research.google.com/drive/1OlTRol4qzW47hEPZmsYZjR-0akR86K9I#scrollTo=D1Reaf487CDR Slaying the Dragon of EVIL
• https://colab.research.google.com/notebooks/intro.ipynb Google Colaboratory
• https://jupyter.org/ Jupyter notebooks
• https://jupyter-notebook.readthedocs.io/en/stable/examples/Notebook/Working%20With%20Markdown%20Cells.html Jupyter Markdown
• https://en.wikipedia.org/wiki/Literate_programming Literate Programming
• https://en.wikipedia.org/wiki/Donald_Knuth Donald Knuth

This video describes a blank template that is a good base for every MIT App Inventor app.

• http://ai2.appinventor.mit.edu/ MIT App Inventor
• http://t.ly/Xg8Bw Blank.aia (download)

This video clarifies the Hershey bar breaking problem.

• https://nytimes.com/2013/01/13/magazine/who-made-that-hershey-bar.html Who made that Hershey bar?
• http://t.ly/Wgm3m Hershey bar image and tables.
• Additional considerations:
  • Consider breaking the Hershey bar into 1, 2, 3, 4, 5, ..., N pieces.
  • When breaking the Hershey bar into any number of pieces (N), the pieces need not be equal sized.
  • When breaking the Hershey bar, consider the minimum number of breaks and the maximum number of breaks.

This video is an introduction to the Java String class and five of its methods.

• https://books.trinket.io/thinkjava/chapter9.html Think Java 9 — Strings and things
• https://docs.oracle.com/javase/8/docs/api/java/lang/String.html Java 8 String
  • http://t.ly/8fsf .length()
  • http://t.ly/RnSW .equals(String)
  • http://t.ly/uRXf .substring(int, int)
  • http://t.ly/UYUx .charAt(int)
  • http://t.ly/EW8U .indexOf(String)
• http://t.ly/7tju Java String SMART notebook
• https://sitepoint.com/implement-javas-equals-method-correctly/ Subtleties of the .equals(Object) method in Java

This video is a code along for six of the https://codingbat.com/java/String-1 exercises.

This video is a information additional to Think Java: Chapter 7 Loops on iteration .

• https://docs.oracle.com/javase/tutorial/java/nutsandbolts/flow.html Oracle Java™ Tutorial: Control Flow Statements
• https://books.trinket.io/thinkjava/chapter7.html Think Java: Chapter 7 Loops
• https://en.wikipedia.org/wiki/Harvard_Mark_I Harvard Mark I
• http://drjava.org/ Dr. Java
• https://homepages.cwi.nl/~storm/teaching/reader/Dijkstra68.pdf Goto Statement Considered Harmful (1968)
• http://t.ly/4nG3 Notes