How to synchronize List, Set and Map elements in java?

Question

Write a program to remove the duplicate elements in an array and print
Eg) Array Elements - 12, 34, 12, 45, 67, 89
O/P: 12,34,45,67,89

Answer 1

Collections class provides methods to make List, Set or Map elements as synchronized:

public static List synchronizedList(List l){}

public static Set synchronizedSet(Set s){}

public static SortedSet synchronizedSortedSet(SortedSet s){}

public static Map synchronizedMap(Map m){}

public static SortedMap synchronizedSortedMap(SortedMap m){}