Spend some time looking at the documentation for Java's implementation of a HashMap. It provides a lot of methods, but you will want to pay close attention to at least the following:

a$.$ put$($K key, V value$)$

b$.$ get $($K key$)$

c$.$ remove $($K key$)$

d$.$ keyset$()$

e$.$ size$()$

Create a new class named Maps and use the main method to experiment by creating an instance of HashMap that can store String keys and Integer values. Try at least the following:

a$.$ Add a few key$/$value pairs to the map.

b$.$ Add two different values using the same key. Which value is returned when you use the key?

c$.$ Print the size of the map.

d$.$ Use a Java for each loop to iterate over the keys in the map and print the values.