Java Control Flow: Boolean Logic, Conditionals, and Iteration
IntermediateControl flow determines the order in which statements execute in a Java program. Boolean expressions evaluate to true or false using relational operators (==, !=, <, >, <=, >=) and logical operators (&&, ||, !). The if-else statement selects code paths based on conditions.
Iteration with for, while, and do-while loops repeats code blocks. For loops control initialization, condition, and update in one line. While loops check before each iteration. Nested loops enable matrix traversal and pattern generation.
Short-circuit evaluation in && and || skips the right operand when the result is already determined. These concepts form 32.5-40% of the AP CSA exam.
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Standards
- AP-CSA-CON
- AP-CSA-VAR
Learning objectives
- •Evaluate boolean expressions using relational and logical operators
- •Trace if-else and nested conditional execution paths
- •Write and trace for, while, and do-while loops including nested loops
- •Apply De Morgan Laws to simplify compound boolean expressions
Recommended Resources
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Books
Barron's AP Computer Science A
by Roselyn Teukolsky
Head First Java
by Kathy Sierra and Bert Bates
5 Steps to a 5: AP CSA
by Dean R. Johnson et al.
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