When Do You Choose Hashmaps In Java Code Example

Snippet 1
  import java.util.HashMap;
//Within a class
//You can do new HashMap();, but you don't need to
HashMap examplehashmap=new HashMap<>();
{
//put in values
 examplehashmap.put(5, "example");
};
//get value
examplehashmap.get(5);
//returns "example" 
Snippet 2
  import java.util.HashMap;

HashMap key = new HashMap();
key.put("abcd", 5);

System.out.println(key.get(5)); //prints out abcd 

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