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Collections and Generics

Question : 29

Total: 53

Given:

1. public class Person {
2.   private name;
3.   public Person(String name) {
4.    this.name = name;
5.   }
6.   public int hashCode() {
7.    return 420;
8.   }
9. }

Which statement is true?

The time to find the value from HashMap with a Person key depends on the size of the map.
Deleting a Person key from a HashMap will delete all map entries for all keys of type Person.
Inserting a second Person object into a HashSet will cause the first Person object to be removed as a duplicate.
The time to determine whether a Person object is contained in a HashSet is constant and does NOT depend on the size of the map.

Validate

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