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Plan your LeetCode Hot 100 journey by grouping problems by data structure and difficulty.
Summarize real-world Java interview questions, restore the original context, and provide structured answer strategies.
Focuses on high-frequency Java Collections questions in real interviews and how interviewers typically dig deeper, helping you systematize the core concepts.
A high-level overview of the Java Collections Framework: core interfaces, common implementations, and when to choose which collection in real projects and interviews.
