Question: Assume the following code: LinkedList I = new LinkedList ( ) ; l . add ( 4 ) ; l . add ( 1 ,

Assume the following code: LinkedList I=new LinkedList(); l.add(4);
l.add(1,5);
l.add(2,1);
l.add(3,2);
l.add(1,3);
l.peekFirst();
What does I.peekFirst() return?
Assume the following code: LinkedList I=new LinkedList(); l.add(4); l.add(1,5); l.add(2,1); l.add(3,2);

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

onsider the following code: LinkedList nums new LinkedList (); //add several elements to nums int sum 0; for (int i 0; i

Q:

If we have a Linked List L (20; 30; 40). Using the Linked List specifications from the slides, how can we insert 10 at the start of the list? L. findFirst (); Integer temp = L. retrieve (); O...

Q:

How do you do the following? a) Create an ArrayList for storing double values? b) Append an object to a list? c) Insert an object at the beginning of a list? D) Find the number of objects in a list?...

Q:

I appreciate any help given. I need help modifying the following code LinkedList to make the following corrections. In the remove method, if the index is exactly the same as the size, it should throw...

Q:

Consider the following declaration: LinkedList list = new LinkedList (); This declaration implies that the LinkedList class could begin with which of the following code statements? I public class...

Q:

iImplement a Singly Linked List detectLoop in Java, it would check whether the linked list contains a loop. Print true if yes, false if not. Test by using the following code: LL L = new LL (); for...

Q:

4. Create simple program that gives an employee a 5% raise and changes their salary. This is a simple program and could all be done in main. However, we want to see how to organize a program using a...

Q:

In this experiment, students have to modify the design of their pipelined processor implementation in experiment 9 to implement a new store instruction called store-immediate (SI) and to include the...

Q:

Java Assume the following code has been implemented: public class ManipulateNames{ public static void main(String args[]){ Names myNames = new Names(); myNames.addName("Thato");...

Q:

1. What is output by the following code: ArrayList a = new ArrayList (); ArrayList b = a; a.add(new Integer(4)); b.add(new Integer(5)); a.add(new Integer(6)); a.add(new...

Q:

Determine the time required to produce the 2000th item if the first item requires 180 minutes to produce and the learning-curve percentage is 92%.

Q:

Q8. Explain the concept of call and put options using numerical examples. Also show the payoff in case of both call and put options using relevant numerical options. (10 marks)

Q:

What differentiates an estate for years from an estate from period - to - period is that an estate for years: Group of answer choices is a renewable agreement. is from year - to - year. is for a...

Q:

3.2 The number of customer complaints at a private clinic in Bloemfontein are given in the table below. 3.2.1 Develop a Pareto chart for the data. Show full calculations. [TURN OVE 3.2.2 Comment on...

Q:

Prepare a constructive performance appraisal.

Q:

Describe the purposes of visual aids in written and oral communication.

Q:

List the advantages of correct report formatting.