CS 115 Reading: Week 6

Indefinite (while) loops

By the end of Week 6, you should be comfortable with:

• Tracing the execution of a while loop
• Writing simple while loops
• Deciding when to use for vs. while

Suggested readings:

• Sections 8.2, 8.3, and 8.5 of your textbook
• The Computer Science Circles section on loops (but skip the material on continue)
• The How to Think Like a Computer Scientist section on while-loops

String processing

By the end of Week 6, you should be comfortable with:

• Accessing individual characters of a string using indexing (e.g. name[1])
• Determining and using the length of a string
• Using the concatenation (+) and repetition (*) operators on strings
• Writing a loop to access each character of a string

Suggested readings for the basics:

• Sections 5.1 and 5.2 of your textbook
• The CS Circles section on strings

Suggested readings to take it to the next level:

• Section 5.4 and 5.8.1 of your textbook
• The How to Think Like a Computer Scientist sections on strings, which cover all of the string operations from class and a few more.