Answered: What is the output of the following…

What is the output of the following code? import java.util.*; class Main { public static void main(String args[]) { ArrayList mylist = new ArrayList(); mylist.add("c"); mylist.add("H");

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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solve by Java 11.4 (Maximum element in ArrayList) Write the following method that returns the maximum value in an ArrayList of integers. The method returns null if the list is nul1 or the list size is 0. public static Integer max (ArrayList list) Write a test program that prompts the user to enter a sequence of numbers ending with 0 and invokes this method to return the largest number in the input.
Methods Details: public static java.lang.StringBuffer[] getArrayStringsLongerThan(java.lang.StringBuffer[] array, int length) Returns a StringBuffer array with COPIES of StringBuffer objects in the array parameter that have a length greater than the length parameter. If no strings are found an empty array will be returned. Parameters: array - length - Returns: Throws:java.lang.IllegalArgumentException - When a null array parameter is provided
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) {
public static void reverse(ArrayList<Integer> alist){}public static ArrayList<Integer> reverseList(ArrayList<Integer> alist){} How to use these two headers method and a main method to create the output of [1,2,3] [3,2,1]
public class arrayOutput ( public static void main (String [] args) { final int NUM ELEMENTS = 3; int[] userVals = new int [NUM_ELEMENTS]; int i; } Type the program's output userVals [0] = 2; userVals [1] = 6; userVals [2] = 8; for (i = userVals.length - 1; i >= 0; −−1) { System.out.println(userVals [1]); } C.C. ? ? ??
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PROBLEM STATEMENT: Return a sublist of a given list from the range of the two integerinputs from, to. public class FindSublistFromRange{public static ArrayList<Integer> solution(ArrayList<Integer> elms, int from, int to){// ↓↓↓↓ your code goes here ↓↓↓↓return new ArrayList<>();} Can you help me with this question The language is Java Please use the code i provided above to answer this question
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import java.util.* ; public class Averager { public static void main(String[] args) { //a two dimensional array int[][] a = {{5, 9, 3, 2, 14}, {77, 44, 22, 15, 99}, {14, 2, 3, 9, 5}, {88, 15, 17, 121, 33}} ; System.out.printf("Average = %.2f\n", average(a)) ; System.out.println("EXPECTED:") ; System.out.println("Average = 29.85") ; System.out.printf("Average of evens = %.2f\n", averageEvens(a)) ; System.out.println("EXPECTED:") ; System.out.println("Average of evens = 26.57") ; Random random = new Random(1) ; a = new int[100][1] ; for (int i = 0 ; i < 100 ; i++) a[i][0] = random.nextInt(1000) ; System.out.println("For an array of random values in range 0 to 999:") ; System.out.printf("Average = %.2f\n", average(a)) ; System.out.printf("Average of evens = %.2f\n", averageEvens(a)) ; } /** Find the average of all elements of a two-dimensional array @param aa the two…