CS10, 09S, Second Midterm Exam

• The actual exam
• Answer Key for the actual exam
  

What was covered:

In general:

• Chapters 7-11, emphasizing the parts we talked about in lecture, on the homeworks, and on the programming assignments lab03, lab04, lab05
• Also, all material from Chapters 1-6, earlier homeworks, and labs lab00, lab01, lab02, to the extent that it impacts the material on Chapters 7-11, as well as some topics that were covered in Chapters 1-6, but did not appears on Exam 1 (see below for detail).

Things to know for Midterm 2

• arrays: how to find the min, max, count, sum, average of an array, counting matches, finding a value, or the index of a value (see Section 7.5, and class notes). Finding a value, or the index of a value.
• for loops: how to use them to step through an array, or produce a sequence of numbers

From Chapter 7:

• arrays vs. ArrayList
• wrapper classes and auto boxing, unboxing
• enhanced for loop
• Not on Midterm 2: Sections 7.6-7.8 (2D arrays, copying arrays, regresssion testing)

From Chapter 8:

• The entire chapter, except 8.9 (Packages)

From Chapter 9

• Everything in 9.1-9.5
• (Not on the exam: 9.6-9.10)

From Chapter 10:

• Only 10.1 through 10.3

From Chapter 11:

• Only 11.1 through 11.4

From Chapters 1-6

Old stuff: Some things from Chapters 1-6 that were in the coverage for exam 1, but didn't show up on the exam:

• Categories of variables (3.7 in your text):

  • instance variables
• local variables
• parameter variables
• The this variable (an implicit parameter), (3.8 in your text)
• primitive types and type casting (4.1 in your text)
• using final with constants (from section 4.2)
• calling static methods (e.g. Math.sqrt(25.0)), from Section 4.5 in your text
• special concerns with testing floating point numbers for equality (5.2.2)
  • subtract, and check if the absolute value (Math.abs()) is less than some small value (called tolerance, or epsilon)

New Stuff: Stuff from Chapters 1-6 that was not included on the first Midterm, but that we have seen since then, so it is fair game for the second midterm:

• Reading User Input (Section 4.7)
  • The Scanner class and its methods
• Formatting numbers (Advanced Topic 4.6)
• Processing sentinel values (Section 6.4)—we'll practice with these on some programming assignments before midterm 2
• The graphics sections:
  • 2.11G, 2.12G, 2.13G
  • (But 3.9G will be for the final, not Midterm 2)