hashmap meaning code example
Example 1: hashmaps java
import java.util.HashMap;
//Within a class
//You can do new HashMap<Key Type, Value Type>();, but you don't need to
HashMap<Int, String> examplehashmap=new HashMap<>();
{
//put in values
examplehashmap.put(5, "example");
};
//get value
examplehashmap.get(5);
//returns "example"
Example 2: hashmap
HashMap is the implementation of Map interface and it store elements in Key, value pair
Example 3: hashmap
- HasHMap can have null key, order is not guaranteed