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This Chapter
9.1 Two-dimensional (2D) Arrays
9.1.1 2D Arrays (Day 1)
9.1.5 Set Value(s) in a 2D Array (Day 2)
9.2 Traversing 2D Arrays (nested loops)
9.2.1 Nested Loops for 2D Arrays (Day 1)
9.2.5 Enhanced For-Each Loop for 2D Arrays (Day 2)
9.3 2D Arrays Summary
9.4 Mixed Up Code Practice
9.5 Toggle Mixed Up or Write Code Practice
9.6 Code Practice with 2D Arrays
9.7 Free Response Questions
9.7.1 Free Response - Gray Image A
9.7.2 Free Response - Gray Image B
9.7.3 Free Response - Route Cipher A
9.7.4 Free Response - Route Cipher B
9.8 Multiple-Choice Exercises
9.8.1 Easier Multiple Choice Questions
9.8.2 Medium Multiple Choice Questions
9.8.3 Hard Multiple Choice Questions
9.9 College Board Picture Lab and Steganography Lab for 2D Arrays
9.9.1 Picture Lab A1 - A3
9.9.2 Picture Lab A4: 2D Arrays in Java
9.9.3 Picture Lab A5: Modifying a Picture
9.9.4 Picture Lab A6: Mirroring Pictures
9.9.5 Picture Lab A7: Mirroring Part of a Picture
9.9.6 Picture Lab A8: Creating a Collage
9.9.7 Picture Lab A9: Simple Edge Detection
9.10 More Code Practice with 2D Arrays
9.7.
Free Response Questions
ΒΆ
9.7.1. Free Response - Gray Image A
9.7.1.1. How to solve this problem
9.7.1.2. Algorithm
9.7.1.3. Try and Solve It
9.7.1.4. Video - One way to code the solution
9.7.2. Free Response - Gray Image B
9.7.2.1. How to solve this problem
9.7.2.2. Algorithm
9.7.2.3. Try and Solve It
9.7.2.4. Video - One way to code the solution
9.7.3. Free Response - Route Cipher A
9.7.3.1. How to Solve This
9.7.3.2. The Algorithm
9.7.3.3. Try And Solve It
9.7.4. Free Response - Route Cipher B
9.7.4.1. How to Solve This
9.7.4.2. Solve Part B
9.7.4.3. Alternate Recursive Solution
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