Java related questions

1.

2.

3.

4.

5.

6.

7.

8.

Which of the following statements are true of HashMaps? Select one: O HashMap is the only kind of Map in Java. O HashMaps do not allow for duplicate keys. You can iterate directly over a HashMap. Key types and Value type must match in a HashMap. What is the proper syntax for iterating over a List of Llama called llamaHerd with an enhanced for loop? Select one: for(int i = 0; i llamatlerd) { // iteration code for(Llama allama : llamatterd) { // iteration code for(llamaHierd: Llama allama){ // iteration code > O for(int counter : llamaHerd) { Llama allama = llamaHerd.get(counter); // iteration code Which of the following statements is true about the relationship between a Map and a HashMap? Select one: HashMap implements Map Map implements HashMap Map extends HashMap HashMap extends Map O None of these Which of the following statements is true about the relationship between an ArrayList and a List? Select one: List implements ArrayList O None of these List extends ArrayList ArrayList extends List O ArrayList implements List Which of the following statements is true when describing the relationship between a Set and a List? Select one: None of these Set implements List List implements Set Set extends List List extends Set Which of the following statements is true when describing the relationship between a TreeMap and a Collection? Select one: Collection extends TreeMap TreeMap extends Collection Collection implements TreeMap TreeMap implements Collection None of these What's the name of the method used to insert a new entry into a HashMap? Select one: O put O add O insert O none of these What's the name of the method used to insert a new entry into an ArrayList? Select one: O none of these insert O put add