8 - Java Collections Framework (Extended Theory)
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Practice Questions
Test your understanding with targeted questions
What is the main advantage of using collections over arrays?
💡 Hint: Think about dynamic size and manipulation methods.
Name one implementation of the List interface.
💡 Hint: List implementations are often ordered.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a key feature of a HashMap?
💡 Hint: Remember how keys are organized in a map.
True or False: A Set can contain duplicate elements.
💡 Hint: Consider the definition of a set.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Create a program that keeps track of unique student IDs and their names using HashSet and HashMap. What challenges might you encounter while using each?
💡 Hint: Think about how each data structure manages data differently.
Design a scenario for an online shopping site where you would need to store items in an ordered, unique, and key-based manner. Specify which collections you would use and why.
💡 Hint: Consider the purpose of each action (viewing, quick access) in the design.
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