AP Computer Science A/ Unit 4: Iteration

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You’ll learn techniques and standard algorithms to work with collections of related data, known as data structures. You’ll delve deeper into data sets, exploring array, ArrayList of objects, and 2D arrays.

Question Difficulty:

Question	Difficulty	Students Solved
Java For Loop Syntax Error	easy	16
For Loop Accumulator Variable	easy	11
Java Enhanced For Loop Summation	easy	9
Iterative Array Traversal	easy	10
Java Loop Printing Output	easy	10
String Iteration Character Count	easy	8
For Loop Initial Condition	easy	8
While Loop Output	easy	5
Boolean Operator Precedence	easy	3
Decrementing For Loop	easy	3
String Reversal with a For Loop	easy	3
Integer and Floating-Point Division	easy	2
While Loop Output Prediction	easy	3
Compound Boolean Expression Logic	easy	2
While Loop With Compound Condition	easy	2
Equivalent For Loop Logic	easy	2
Java Object Reference Comparison	easy	2
While Loop With Compound Condition	easy	2
Array Search Loop Logic	easy	1
While Loop Summation	easy	2

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Unit Leaderboard

Rank	User	Correct Count	Attempt Count	Total Time	Score
#1	hitrishabhatia	79	186	0m 00s	6,830
#2	hadleysmith5	23	33	0m 00s	2,200
#3	busemagngr	35	45	24m 45s	1,915
#4	lsj08030922	16	20	0m 00s	1,560
#5	diceans	16	20	0m 00s	1,560
#6	ravi.palepu	17	27	5m 25s	1,275
#7	angelajxi11	12	15	0m 00s	1,170
#8	sgarv2513	11	13	0m 00s	1,080
#9	kwakmk090330	10	15	0m 00s	950
#10	the.ronzono	7	7	0m 00s	700

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