2. You are given the following problem description. Complete the following Java function to handle the problem. Use any data structure from Collection framework as you deem necessary (eg. Stack, Queue, Map, HashTable, ArrayList, LinkedList, etc.) Description: Write a Java function, that takes in a list of numbers, which have elements that'll appear exactly once, except for one element that'll appear exactly twice. Return that element which will appear twice. You can be sure that the list will always have such an element, and the list's size will be >= 3.
2. You are given the following problem description. Complete the following Java function to handle the problem. Use any data structure from Collection framework as you deem necessary (eg. Stack, Queue, Map, HashTable, ArrayList, LinkedList, etc.) Description: Write a Java function, that takes in a list of numbers, which have elements that'll appear exactly once, except for one element that'll appear exactly twice. Return that element which will appear twice. You can be sure that the list will always have such an element, and the list's size will be >= 3.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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![2. You are given the following problem description. Complete the following Java function
to handle the problem. Use any data structure from Collection framework as you deem
necessary (eg. Stack, Queue, Map, HashTable, ArrayList, LinkedList, etc.)
Description:
Write a Java function, that takes in a list of numbers,
which have elements that'll appear exactly once, except for one element
that'll appear exactly twice. Return that element which will appear twice. You can be sure
that the list will always have such an element, and the list's size will be >= 3.
Sample Input: [ 1, 2, 1, 3, 4, 5, 7]
Sample Output: 1 (as only 1 appears twice, whereas other numbers appear once)
private int getNumberAppearing Twice(List<Integer> list) {
Il Complete this function. Use any data structures from the Collection
framework. Use appropriate variable and/or method names.
return -1; /l return the answer here, instead of -1
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4f1f833d-d164-4887-b8ba-76527e35646b%2F26d968ed-f27d-4c9d-b108-7bd924796fd4%2Fa49y5v_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. You are given the following problem description. Complete the following Java function
to handle the problem. Use any data structure from Collection framework as you deem
necessary (eg. Stack, Queue, Map, HashTable, ArrayList, LinkedList, etc.)
Description:
Write a Java function, that takes in a list of numbers,
which have elements that'll appear exactly once, except for one element
that'll appear exactly twice. Return that element which will appear twice. You can be sure
that the list will always have such an element, and the list's size will be >= 3.
Sample Input: [ 1, 2, 1, 3, 4, 5, 7]
Sample Output: 1 (as only 1 appears twice, whereas other numbers appear once)
private int getNumberAppearing Twice(List<Integer> list) {
Il Complete this function. Use any data structures from the Collection
framework. Use appropriate variable and/or method names.
return -1; /l return the answer here, instead of -1
}
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