Answer the following statements true (T) or false (F)
1. Collections is an interface.
2. Iterators can remove elements.
3. With hashing, as the load factor increases, the chance of collisions decreases.
4. A PriorityQueue permits null elements.
1. False. Collections is a class; Collection is an interface. ANS: True.
2. False. As the load factor increases, fewer slots are available relative to the total number of slots, so the chance of a collision increases.
3. False. Attempting to insert a null element causes a NullPointerException.
You might also like to view...
The regular expression matches zero or more digits.
a. "\d*" b. "\D?" c. "\w{0,}" d. "\d+"
Why would it be necessary and convenient to overload an operator for a class?
A. To compare objects. B. You cannot overload an operator in a class. C. To delete objects. D. All of the above.
?Case 4-2 Arnold takes his networking trainer Ron's help to learn about the array of new communications technologies that are being used today. Ron provides various instances and examples that can help Arnold identify different communication protocols and standards. Ron tells Arnoldthat both the HomePNA Alliance and the HomeGrid Forum are promoting a technology as a unified worldwide standard. Which of the following standards is Ron talking about here?
A. ?G.hn B. ?Universal Mobile Telecommunications System C. ?Licensed-Assisted Access D. ?Long Term Evolution
When you resize an object by the square sizing handles, you adjust the width and height simultaneously
Indicate whether the statement is true or false