
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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![1) You have an array named array1 with these elements:
6
4
10
3
What is the value of array1[4]?
What is the value of array1.length?
9
2
7
8](https://content.bartleby.com/qna-images/question/e939ce9a-3f0b-4c67-91f0-7d1169fb791b/2e7fb085-cf9c-4051-8542-61e467017594/n8fo3hm_thumbnail.jpeg)
Transcribed Image Text:1) You have an array named array1 with these elements:
6
4
10
3
What is the value of array1[4]?
What is the value of array1.length?
9
2
7
8
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- part a- 2point) for 3 students find the average of a student by asking him how many grades do you have. The answer to this question, determine the size of the array(list of grades) and then ask the user to enter grades(the number of the grades is equal to the size of the array) then calculate the average for each student. Hence, you will calculate 3 averages. to calculate the average, use the array accumulator. Also when you get each grade validate it. validation for grade means that you check whether a grade is between 0 and 100. if the grade is negative or a grade is more than 100 then it is not valid and you have to ask the user to enter a grade again. Part b- 1 point) Find the maximum and minimum grades for each student. Part c- 1 point) Print the sorted list of the grades for each student. example: if grades user entered are: 60 78 98 23 45 then sorted list is:23 45 60 78 98 (Array not vector)arrow_forwardPlease Help me I will give thumbs up Follow the task in the skeleton code. public class DoublyLinkedList{ // define ListNode elements specific for this type of list, indicating current, previous and next // consider head as name for previous node, and tail for the next one.private ListNode head;private ListNode current;private ListNode tail; // default constructor public DoublyLinkedList(){ //*** Task #1: implement a default constructor here, initializing the nodes to null } // method that calculates the length of the listpublic int length(){ //*** Task #2: implement the method navigating through the list until you run out of elements } public void addANodeToStart(E addData){ //*** Task #3: implement this method, taking into consideration that the head will be replaced by a new node. You may want to use a temporary variable } // accessor method that gets data at current nodepublic E getDataAtCurrent(){ //*** Task #4: implement this method making…arrow_forward
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