Java, Spring, Microservices, Interview, Coding.
hash code and equals method can be seen through the help of the following program: public class HashMapTest { public static void main(String[] args) { Map <Key, String> cityMap = new HashMap<Key, String>(); cityMap.put(new Key(1, "NY"),"New York City" ); cityMap.put(new Key(2, "ND"), "New Delhi");