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Answer the following questions regarding the code: a) What is the list after line 6? b) What is the list after line 9? c) Line 10 gives what value?

Answer the following questions regarding the code: a) What is the list after line 6? b) What is the list after line 9? c) Line 10 gives what value?

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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19. Given the following linked list: LinkedList<Double> list = new LinkedList<Double>(); And this code: 1. list.add(1.5); 2. list.addFirst(11.3); 3. list.add(6.2); 4. list.add(3.4); 5. list.addLast(4.8); 6. list.add(7.4); 7. list.remove(1.5); 8. list.remove(3.4); 9. list.removeFirst); 10. System.out.println(list.getFirst(); Answer the following questions regarding the code: a) What is the list after line 6? b) What is the list after line 9? c) Line 10 gives what value?
Transcribed Image Text:19. Given the following linked list: LinkedList<Double> list = new LinkedList<Double>(); And this code: 1. list.add(1.5); 2. list.addFirst(11.3); 3. list.add(6.2); 4. list.add(3.4); 5. list.addLast(4.8); 6. list.add(7.4); 7. list.remove(1.5); 8. list.remove(3.4); 9. list.removeFirst); 10. System.out.println(list.getFirst(); Answer the following questions regarding the code: a) What is the list after line 6? b) What is the list after line 9? c) Line 10 gives what value?
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