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The guide covers all four units of the AP CSA curriculum: Part 1: The Foundation of Programming (Unit 1)Algorithms, Java basics, compilers, and IDEsPrimitive vs. reference types, variable declarationExpressions, output, input with ScannerCasting, overflow, compound assignment operatorsObjects, classes, methods, constructorsThe String class and immutabilityPart 2: Controlling Program Flow (Unit 2)Boolean logic, if statements, relational operatorsNested if, multi-way selection, compound expression