QUE STION 1 Write the missing statements as per given comments to complete the programs. Java program for flexible array using ArrayList import java.util. ArrayList import java.util.Iterator; public class IteratorPatternDemo { public static void main(String args || ){ I/ Define an object of ArrayList named as aryQueue Il Add "Ahmed to the tail of aryQueue II Add "Khalid" to the tail of aryQueue II Add "Majd' to the tail of aryQueue II Remove the first element from the front of aryQueue II Define an iterator "it" on aryQueue I Write code to display all names in aryQueue using the iterator • while( String obj = (Stringit.nexti): System.out.printin(obj): }}

QUE STION 1 Write the missing statements as per given comments to complete the programs. Java program for flexible array using ArrayList import java.util. ArrayList import java.util.Iterator; public class IteratorPatternDemo { public static void main(String args || ){ I/ Define an object of ArrayList named as aryQueue Il Add "Ahmed to the tail of aryQueue II Add "Khalid" to the tail of aryQueue II Add "Majd' to the tail of aryQueue II Remove the first element from the front of aryQueue II Define an iterator "it" on aryQueue I Write code to display all names in aryQueue using the iterator • while( String obj = (Stringit.nexti): System.out.printin(obj): }}

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

See similar textbooks

Similar questions

Complete my C++ program: Instructions: You have to continue on implementing your Array List namely the following functions: Example ArrayList: [10, 30, 40, 50] void addAt(int num, int pos) This method will add the integer num to the posth position of the list. Performing addAt(20, 2) in the example list will add 20 at the 2nd position and the array will now look like this: [10, 20, 30, 40, 50] When the value of pos is greater than the size + 1 or less than one, output "Position value invalid" void removeAt(int pos) Removes the number in the posth position of the list. Performing removeAt(3) in the example list will remove the 3rd element of the list and the updated array will be: [10, 30, 50] When the value of pos is greater than the size or less than one, output "Position value invalid" void removeAll(int num) Removes all instances of num in the array list. In this array [10, 10, 20, 30, 10], performing removeAll(10) will remove all 10's and the list will look like this: [20,…
1. Array splitting in Java Create an integer array with 10 integer numbers, initialize the array arbitrarily but make sure there are both positive and negative integers. Then generate two arrays out of the original array, one array with all natural numbers (positive numbers or zeros) and another one with all negative numbers. Print out the number of elements and the detailed elements in each array.
10 Build the Sudoku Reviewer ( the testing program). The specification is below. Please note: you DO NOT have to build a Sudoku solver. To test you just need to build a class that generates a 9x9 2D array with the values you want to test. You can assume the value types are valid. (integers from 1-9). 1-The main purpose is to make sure the Sudoku solver actually solved it correctly! 2- You are also confirming the solver solves puzzle in no longer than a minute 3- Solver (not the reviewer) requires 7 INDICES (ELEMENTS) filled in the input array at least. 4- The reviewer receives both the original puzzle and the solution. The Reviewer needs to confirm the solution is not only a valid SudoKu solution but also the solution to the original puzzle. 5- Solver will return a 2d array filled with -1s if input array has an error/bad input (exception). Reviewer will check for this case.
Enhanced selection sort algorithm SelectionSortDemo.java package chapter7; /** This program demonstrates the selectionSort method in the ArrayTools class. */ public class SelectionSortDemo { public static void main(String[] arg) { int[] values = {5, 7, 2, 8, 9, 1}; // Display the unsorted array. System.out.println("The unsorted values are:"); for (int i = 0; i < values.length; i++) System.out.print(values[i] + " "); System.out.println(); // Sort the array. selectionSort(values); // Display the sorted array. System.out.println("The sorted values are:"); for (int i = 0; i < values.length; i++) System.out.print(values[i] + " "); System.out.println(); } /** The selectionSort method performs a selection sort on an int array. The array is sorted in ascending order. @param array The array to sort. */ public static void selectionSort(int[] array) { int startScan, index, minIndex, minValue; for (startScan = 0; startScan < (array.length-1); startScan++) { minIndex = startScan; minValue…
Method Details: public static java.lang.String getArrayString(int[] array, char separator) Return a string where each array entry (except the last one) is followed by the specified separator. An empty string will be return if the array has no elements. Parameters: array - separator - Returns: stringThrows:java.lang.IllegalArgumentException - When a null array parameter is provided
Data Structure & Algorithm: Show by fully java coded examples how any two sorting algorithms work. You should test these with various array sizes and run them several times and record the execution times. At least four array sizes are recommended. 15, 20, 25, 30. It is recommended you write the classes and then demonstrate/test them using another class. Discuss the comparative efficiencies of your two chosen sorting algorithms.
Java - Gift Exchange *** Please include UML Diagram and notes in code Minimum requirements are: At least 1 loop An Array or ArrayList At least 3 Java classes Use methods I am trying to make it so that the program will: Prompt for the number of people included in exchange - If not even it will state that there has to be an even number and ask for the number of people included again (loops). Prompt to enter a participant's first name Prompt for the participant's age Print out the random matching of participants so that everyone gets a gift and everyone gives a gift. Please include UML Diagram
19. Write a recursive (no "while" or "for" or any looping statement) method "frequency", which takes as parameters an IntNode myList and an integer element and returns the number of times the integer element appears in myList. public class IntNode. { private int m_data; private IntNode m link; public IntNode (int data, IntNode link) { m data data; m link link; } public int getInfo() {return m_data; } public IntNode getLink () {return m_link; } } public int frequency (IntNode myList, int element) {
Write method body of followingfunction: void deleteRange(int from, int to){ } Above function deletes whole range of elements from an array by asking user for starting value and ending value. (Dont use pointers) Write best solution for worst case scenario.
Java Lab #1 1. Create an ArrayList a. Fill with 20 random values [1-25] . b. Insert the value -12 at index 3. c. Double all odd values. d. Remove all values 15. e. Remove all multiples of 4 and insert into a new ArrayList called fours. Note: Display the lists after each step.
C++ Language Please add an execution chart for this code like the example below. I have provided the code and the example execution chart. : JUST NEED EXECUTION CHARTTT. Thanks Sample Execution Chart Template//your header files// constant size of the array// declare an array of BankAccount objects called accountsArray of size =SIZE// comments for other declarations with variable names etc and their functionality// function prototypes// method to fill array from file, details of input and output values and purpose of functionvoid fillArray (ifstream &input,BankAccount accountsArray[]);// method to find the largest account using balance as keyint largest(BankAccount accountsArray[]);// method to find the smallest account using balance as keyint smallest(BankAccount accountsArray[]);// method to display all elements of the accounts arrayvoid printArray(BankAccount accountsArray[]);int main() {// function calls come here:// give the function call and a comment about the purpose,//…