Practice with collections

Create a HashSet with String elements. Add the following strings to it: watermelon banana cherry pear cantaloupe blackberry ginseng strawberry iris potato Display the contents of the collection, each element on a new line. Watch how the order of the entries has changed.

Create a HashMap, and add 10 string pairs: watermelon - melon, banana - fruit, cherry - fruit, pear - fruit, cantaloupe - melon, blackberry - fruit, ginseng - root, strawberry - fruit, iris - flower, potato - tuber. Display the contents of the collection, each element on a new line. Example output:

There is a HashMap. 10 different strings have been added to it. Display a list of values on the screen, each element on a new line.

There is a HashMap. 10 different object pairs have been added to it. Display the contents of the collection, each element on a new line. Example output: (here we just show one line): Sim - 5

There is a HashMap. 10 different strings have been added to it. Display a list of keys on the screen, each element on a new line.

There is a Cat class with a String name. Create a Map. Add 10 cats to the collection. The cat's name should be used as the key. Display the result on the screen, each element on a new line.