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Object Oriented Programming with Java Unit 4 – Java Collections Framework: AKTU previous year questions

7 AKTU questions from Unit 4 (Java Collections Framework) asked in 2024–2025, tagged by marks, year and topic. In short: about 22 marks of every paper come from this unit; the most asked topic is List Interface Implementations (3 times); 3 questions came back in a later year. The latest ones are listed below; on the page you can filter them by 2-mark or long questions, topic and repeats.

Unit 4 previous year questions

  • How does Stack differ from Queue? (2 marks, 2025, List Interface Implementations)
  • Compare and contrast ArrayList and LinkedList in terms of performance and usage. (7 marks, 2025, List Interface Implementations)
  • Write a program to demonstrate the use of HashMap and iterate through keys and values. (7 marks, 2025, Map Interface Implementations)
  • Discuss the hierarchy of the Collection framework in Java. Differentiate between List, Set, and Map. (7 marks, 2025, Collection Framework Overview)
  • Describe Collections framework in Java with a suitable diagram displaying interfaces and classes and their hierarchy. Also explain the List, Set and Queue interfaces. (7 marks, 2024, Collection Framework Overview)
  • Describe Linked List in Java collection framework. With suitable example describe any five methods available in Linked Lists. (7 marks, 2024, List Interface Implementations)
  • Describe HashMap in Java collection framework. With suitable example describe any five methods available in HashMaps. (7 marks, 2024, Map Interface Implementations)

Most asked Unit 4 topics

  • List Interface Implementations – asked 3 times
  • Collection Framework Overview – asked 2 times
  • Map Interface Implementations – asked 2 times

Unit 4 question pattern

  • 2-mark questions: 1 asked in 2024–2025
  • 7-mark questions: 6 asked in 2024–2025
  • About 22 marks from Unit 4 in every paper
  • 3 questions were asked again in a later year

Unit 4 questions year by year

  • 2025: 4 Unit 4 questions asked (23 marks across that year's papers)
  • 2024: 3 Unit 4 questions asked (21 marks across that year's papers)