Java java.util Collections

• Java

• java.util

• • java.util

  • AbstractList

  • ArrayDeque

  • ArrayList

  • Arrays

  • Base64

  • BitSet

  • Calendar

  • Collection

  • Collections

  • Comparator

  • Currency

  • Date

  • Deque

  • DoubleSummaryStatistics

  • EnumMap

  • EnumSet

  • EventListener

  • EventObject

  • Formatter

  • GregorianCalendar

  • HashMap

  • HashSet

  • Hashtable

  • IntSummaryStatistics

  • Iterator

  • LinkedHashMap

  • LinkedHashSet

  • LinkedList

  • List

  • ListIterator

  • ResourceBundle

  • Locale

  • LongSummaryStatistics

  • Map

  • NavigableMap

  • Objects

  • Observer

  • Optional

  • OptionalInt

  • PriorityQueue

  • Properties

  • Queue

  • Random

  • Scanner

  • Set

  • SortedMap

  • SortedSet

  • Spliterator

  • Stack

  • StringTokenizer

  • TimerTask

  • TimeZone

  • TreeMap

  • TreeSet

  • UUID

  • Vector

Introduction

1. Java Collections add array to Collection
2. Java Collections binary search List
3. Java Collections check value frequency in List
4. Java Collections copy list
5. Java Collections create an unmodifiable map
6. Java Collections create empty ListIterator
7. Java Collections disjoint to check common element
8. Java Collections fill specified object to List



9. Java Collections fill value to List
10. Java Collections find the Max/Min value in a collection
11. Java Collections frequency
12. Java Collections frequency count character frequency
13. Java Collections get max/min using Comparator
14. Java Collections reverse List
15. Java Collections rotate List
16. Java Collections shuffle deck of cards



17. Java Collections sort using String.CASE_INSENSITIVE_ORDER
18. Java Collections sort with custom Comparator
19. Java Collections sort with reversed order