THashSet<Integer> set = new THashSet<>();
set.add(1);
set.add(2);
set.add(3);
TIntArrayList list = new TIntArrayList();
list.add(1);
list.add(2);
list.add(3);
TObjectIntHashMap<String> map = new TObjectIntHashMap<>();
map.put("apple", 1);
map.put("banana", 2);
map.put("orange", 3);
<dependency>
<groupId>gnu.trove</groupId>
<artifactId>trove4j</artifactId>
<version>3.1a1</version>
</dependency>
