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Java Academy · Lesson

Sorting/Searching with Collections

Use Collections.sort, Collections.binarySearch, and Comparators for custom sorting and searching.

Intro

Sorting organizes data for fast searching. Java's Collections has built-in sort and binarySearch utilities.

Sorting basics

Collections.sort orders a List in-place. By default it uses natural order (e.g., numbers ascending, strings A–Z).

All lessons in this course

  1. Maps & Frequency Counting
  2. Comparable vs Comparator
  3. Sorting/Searching with Collections
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