[0] [1] [2] [3] myList "Bashful" "Awful" Jumpy" "Happy" The above "myList" is an ArrayList in Java program. 1. If I want to insert "Painful" at the index 1, which of the following actions should I take first? a. Move "Happy" to the next element first. b. Move "Awful" to the next element first. Describe the reason of your choice.

[0] [1] [2] [3] myList "Bashful" "Awful" Jumpy" "Happy" The above "myList" is an ArrayList in Java program. 1. If I want to insert "Painful" at the index 1, which of the following actions should I take first? a. Move "Happy" to the next element first. b. Move "Awful" to the next element first. Describe the reason of your choice.

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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Use stack concepts Q #2 Ô https://www.loc-cs.org/~chu/DataStructu Essay Questions (20% each)- continue [0] [1] [2] [3] myList "Bashful" "Awful" Jumpy "Happy The above "myList" is an ArrayList in Java program. 2. If I want to remove "Awful" from myList, which of the following actions should I take first? a. Move "Happy" to the previous element first. b. Move "Jumpy" to the previous element first. Describe the reason of your choice. Next Page
TASK 1: Write a Java program that do the following: [10 Marks] 1. Define and create an ArrayList which is called "itemsList" of Integer objects. [1 mark] 2. Define and create an array which is called "numList" with five integer vales. [1 mark] 3. Copy the five values from the array "numList" o ArrayList using a for loop. [2 marks] 4. Display the contents of the ArrayList with a message using the for loop with the get method. marks] 5. Display the size of ArrayList with a message. [1.5 mark] 6. Find the sum of ArrayList. [3 marks] [1.5
Problem Description - JAVA PROGRAMMING Use a Two-dimensional (3x3) array to solve the following problem: Write an application that inputs nine numbers, each of which is between 1 and 10, inclusive. Display the array after the user inputs each value. Rotate/flip the array by changing places. Make the rows columns and vice versa. You have to move the elements to their new locations. Remember to validate the input and display an error message if the user inputs invalid data. Documentation and the screenshot(s) of the results. Example: 1 2 3 4 5 6 7 8 9 the result will be : 1 4 7 2 5 8 3 6 9
Java code 8. Given an existing ArrayList named friendList, find the first index of a friend named Sasha and store it in a new variable named index. 9. Given that an ArrayList of Integers named numberList has already been created and several values have already been inserted, write the statement necessary to insert the value 25 at the end of the list. 10. Declare an integer array named evens and fill it with even numbers from 2 through 10 in one statement. 11. Given an existing array named pets, find the size of the array and store it in a new variable named numPets. 12. Given an existing ArrayList named contactList, find the number of contacts in the ArrayList and store it in the existing variable named numContacts.
For any element in keysList with a value greater than 50, print the corresponding value in itemsList, followed by a comma (no spaces). Ex: If the input is: 32 105 101 35 10 20 30 40 the output is: 20,30, 1 #include 2 3 int main(void) { const int SIZE_LIST = 4; int keysList[SIZE_LIST]; int itemsList[SIZE_LIST]; int i; 4 6 7 8 scanf("%d", &keysList[0]); scanf ("%d", &keysList[1]); scanf("%d", &keysList[2]); scanf("%d", &keysList[3]); 10 11 12 13 scanf ("%d", &itemsList[0]); scanf ("%d", &itemsList[1]); scanf("%d", &itemsList[2]); scanf ("%d", &itemsList[3]); 14 15 16 17 18 19 /* Your code goes here */ 20 21 printf("\n"); 22 23 return 0; 24 }
narmts Save Answer Write a Java program that uses ArrayList and Iterator. It should input from user the names and ages of your few friends in a loop and add into ArrayList. Finally, it should use Iterator to display the data in a proper format. (Hint- Lecture 02: Slide 8) Sample output: List of my Friends Enter name and age [friend# oj Khalid Al-shamri 22.5 Do you want to add another friend (y/n)? y Enter name and age [friend# 1] Rahsed Al-anazi 21.1 Do you want to add another friend (y/n)? y Enter name and age [friend# 2] Salem Al-mutairi 23.7 Do you want to add another friend (y/n)? n Here is the data you entered: 0. Khalid Al-shamri, 22.5 1. Rahsed Al-anazi, 21.1 2. Salem Al-mutairi, 23.7
1)Examine the above code that creates the array: a)How is the base type of the array specified? b)How is the length of the array specified? c)How many Strings are actually stored in the array after the array has been created? d)How is the base type of the ArrayList specified? e)How is the capacity of the ArrayList specified? f)What is the capacity of the ArrayList? g)What is the size of the ArrayList?
Distinguish between an array and an arraylist and describe their primary distinctions.
Please do it in JavaScript or C# 1) Design and implement the class structure for a drawing application. A drawing is made up of a canvas that contains a collection of three different shapes: circles, lines, and boxes. Each shape can be drawn by calling a Draw() method for that shape. The canvas class should also have a draw method that draws all of the shapes it contains. You don’t have to actually draw anything on a screen; you can simulate drawing by writing a message to the console.For example, the code snippet: canvas.Draw();Drawing a circle at...Drawing a line at...etc. (For each shape on the canvas) 2)(Bonus) Consider re-writing the above answer (#1) differently where the canvas does not contain the shapes, but is able to draw any of the three shapes passed to it. Re-design canvas.Draw() if you need to. Your main() program should ask for user input on what shape to draw. Ask once, draw, then exit.could produce something like the following output to the console:
Computer Science You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date d, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email and ArrayList of Messages provide getters/setters, constructors, toString addMessage(Message m) method which will add new message to the list. Provide following options to the user using JFrame. Login which will help user login to the application. View Friends (Display List of All Friends) View Messages ( This should display all message of a Friend) Send message (This should ask for friend name and message match the friend name and write that message to the array list).
Q2. Write a java program to perform the following task: a) Create a collection ArrayList<String> for Customer class b) Add 5 elements into ArrayList c) Display the element at index 4 d) Display all the elements in the ArrayList using for-each loop e) Remove the values at index 2 f) Add “cst2” in location 2. g) Check if st2 existing inside the collection.
#Steps: Create a Main class. Declare an ArrayList in the main() method and store the given values in it. Create an array called output of the size of the ArrayList. Iterate through for-loop to get each element from the array List and load it into the array using the get() method of the list. Print the array to see the loaded elements. import java.util.ArrayList; import java.util.List; public class Main { public static void main(String[] args) { List<String> nameList = new ArrayList<String>(); nameList.add("Robert"); nameList.add("Samson"); nameList.add("Alex"); nameList.add("William"); System.out.println("Elements of List: " + nameList); // Create an array of the same size as nameList Hint: use size() method // Fetch the elements from the nameList and insert into newly created array // Hint: Use get() method to fetch the elements from…