Practice Quizzes

Test your understanding of 1D and 2D arrays including indexing, operations, and time complexity.

Test your understanding of sorting algorithms including Bubble Sort, Selection Sort, Insertion Sort, Merge Sort, and Quick Sort.

Advanced quiz covering all sorting algorithms including Heap Sort, algorithm selection, and complexity analysis

Test your understanding of ArrayList and LinkedList implementations.

Multiple choice questions about ArrayList and LinkedList concepts.

Trace through List operations to predict the outcome.

Test your understanding of stack and queue operations, implementations, and applications

Focus on understanding LIFO, FIFO, and when to use each data structure

Practice tracing stack and queue operations step by step

Test your understanding of recursion concepts and trace through recursive calls.

Multiple choice questions about recursion fundamentals.

Trace through recursive function calls to find the answer.

Test your understanding of Big O notation and complexity analysis.

Multiple choice questions about Big O notation fundamentals.

Count operations and trace through code to understand complexity.

Test your understanding of HashMap, HashSet, hashing, collisions, and rehashing