import com.google.common.collect.HashMultiset;
import com.google.common.collect.Multiset;
public class MultisetExample {
public static void main(String[] args) {
Multiset<String> multiset = HashMultiset.create();
multiset.add("apple");
multiset.add("banana");
multiset.add("apple");
}
}
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Multimap;
public class MultimapExample {
public static void main(String[] args) {
Multimap<String, Integer> multimap = ArrayListMultimap.create();
multimap.put("fruit", 1);
multimap.put("fruit", 2);
multimap.put("fruit", 3);
}
}
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>30.1-jre</version>
</dependency>
