14 min read
This AP Computer Science A study guide covers primitive types and operators, control flow (if, for, while loops, boolean expressions), the String class (methods, concatenation), classes and objects (constructors, methods, inheritance, polymorphism), arrays (basics, traversing), ArrayLists (methods, traversing), 2D arrays, and recursion. It includes practice questions and emphasizes code tracing, exam tips, and common mistakes to avoid.
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Question 1 of 11
What is the value of x after the code int x = 10; x += 5; executes? ➕
5
10
15
20