1. Suppose you have the following list of integer values to be inserted to your ArrayList: [-1, 2, -4, -3, 0, 5, 9, 6, -7, 8] Write a method filterNegative() that filters out all of the negative values from the ArrayList and return an ArrayList without negative values. • Print the elements before and after invoking filterNegative() method. • Print the size of the ArrayList before and after invoking the filerNegative() method. • Then write a method minMax() to print the values and the index of the minimum and maximum elements. • Also, print the elements located between the minimum and maximum values. • Finally, write a code segment to check if the list includes the value 20. Sample Output ArrayList before filtering: [-1, 2, -4, -3, o, 5, 9, 6, -7, 8] Size before filtering: 10 ArrayList after filtering the negative values: [2, 0, 5, 9, 6, 8] Size after filtering: 6 The max value is: 9 The min value is: 0 The index of max value is: 3 The index of min value is: 1 The elements between min and max are: [5] Is value 20 in the list? false

1. Suppose you have the following list of integer values to be inserted to your ArrayList: [-1, 2, -4, -3, 0, 5, 9, 6, -7, 8] Write a method filterNegative() that filters out all of the negative values from the ArrayList and return an ArrayList without negative values. • Print the elements before and after invoking filterNegative() method. • Print the size of the ArrayList before and after invoking the filerNegative() method. • Then write a method minMax() to print the values and the index of the minimum and maximum elements. • Also, print the elements located between the minimum and maximum values. • Finally, write a code segment to check if the list includes the value 20. Sample Output ArrayList before filtering: [-1, 2, -4, -3, o, 5, 9, 6, -7, 8] Size before filtering: 10 ArrayList after filtering the negative values: [2, 0, 5, 9, 6, 8] Size after filtering: 6 The max value is: 9 The min value is: 0 The index of max value is: 3 The index of min value is: 1 The elements between min and max are: [5] Is value 20 in the list? false

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

Implement the __setitem__ method such that: 1. if element value is 0, do nothing 2. if the i,j coordinates exceed the current size of the array, insert the element, but update the size (self.shape) accordingly. Complete: def SparseMatrix5(m=None,**kwargs): import itertools import numpy as np def add_to_dict(d, key1, key2, val): <... YOUR CODE HERE ...> class SparseMatrix5_class: def __init__(self, m=m, **kwargs): <... YOUR CODE HERE ...> def __setitem__(self, pos, val): <... YOUR CODE HERE ...> def __getitem__(self, pos): <... YOUR CODE HERE ...> def to_dense(self): <... YOUR CODE HERE ...> return SparseMatrix5_class(**kwargs) manually check your code: def random_sparse_matrix(size): m = np.random.randint(2, size=size) m = m * np.random.randint(10,size=size) return m m = random_sparse_matrix((5,3))s =…
java, PLEASE THE METHOD SHOULD USE THE INITIAL ARRAYLIST NOT TO CREATE A NEW ONE Create a class called OurArrayList and implement the following methods. Do NOT create any auxiliary memory.Include a main method and test all your methods with appropriate examples.a. Write a method called scaleByK() that takes an ArrayList of integers as aparameter and replaces every integer of value K with K copies of itself. Forexample, if the list stores the values (4, 1 , 2, 0 ,3) before the method is called, itshould store the values (4, 4, 4, 4, 1, 2, 2, 3, 3, 3) after the method finishesexecuting. Zeroes and negative numbers should be removed from the list by thismethod
Support you have an ArrayList containing random integers. These integers can be any number, and each integer can appear more than once. For example, [2, 19, 21, 19, 21, 1, 3, 3, 6, 21, .....] Your job is to write a method called findEvenFrequentNumbers(ArrayList<Integer> list) that returns an ArrayList which has all the numbers appears in even frequency and in increasing order. e.g. list = [2, 19, 21, 19, 21, 1, 3, 3, 6, 21], should return [3, 19] list = [3, 3, 3, 1, 2, 2, 2, 2, 2], should return [] list = [1, 1, 1, 1, 1], should return [1] Note that you need to provide a class with the main function and also the imports.
Given an ArrayList of integers, return an ArrayList where all the odds are before the evens in the order that they occur. public ArrayList<Integer> solution(ArrayList<Integer> nums) {ArrayList<Integer> finalList = new ArrayList<>();int index = 0;for (int i = 0; i < nums.size(); i++) {if (nums.get(i) % 2 == 1) {finalList.add(index, nums.get(i));index++;} elsefinalList.add(nums.get(i));}return finalList;} This is my failing code. for [1.-3.3] where [1,3,-3] is being returned
Please Use java only. Inthisassignment,youwillimplementaclasscalledCustomIntegerArrayList. Thisclass represents a fancy ArrayList that stores integers and supports additional operations not included in Java's built-in ArrayList methods. For example, the CustomIntegerArrayList class has a “splice” method which removes a specified number of elements from the CustomIntegerArrayList, starting at a given index. For a CustomIntegerArrayList that includes: 1, 2, 3, 4, and 5, calling splice(1, 2) will remove 2 items starting at index 1. This will remove 2 and 3 (the 2nd and 3rd items). The Cu stomIntegerArrayList class has 2 different (overloaded) constructors. (Remember, an overloaded constructor is a constructor that has the same name, but a different number, type, or sequence of parameters, as another constructor in the class.) Having 2 different constructors means you can create an instance of the CustomIntegerArrayList class in 2 different ways, depending on which constructor you…
Given an ArrayList of integers, return an ArrayList where all the odds are before the evens in the order that they occur. import java.util.ArrayList;public class EvenAfterOdds{public static ArrayList<Integer> solution(ArrayList<Integer> nums){// ↓↓↓↓ your code goes here ↓↓↓↓return new ArrayList<>();}}
The input to this method is supposedly an ArrayList of integersthat ranges from 1 to 100, however this is not exactly the case.Sometimes, there will be gaps in the range for example, the rangecould be: [1 2 ... 7 8 ... 99 100], with missing ranges in between.Find all the missing numbers from the range, add them to an ArrayList,return the ArrayList. language java
A supermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. For that purpose, the store keeps an ArrayList.Create a class customer having id, name, gender, and bill provide appropriate getters/setters and constructors also provide toString method.In the Store class, make an ArrayList of customers, store name, and address implement methods public void addSale(Customer c) that will add customers to the arraylist.public void RemoveCustomer(int id);public void UpdateCustomerRecord(int Id);public displayAll();public String nameOfBestCustomer() to record the sale and return the name of the customer with the largest sale. public ArrayList nameOfBestCustomers(int topN) so that it displays the top customers, that is, the topN customers with the largest sales, where topN is a value that the user of the program supplies. Write a program that prompts following menu and ============================================…
Use the Iterator Pattern: Create a class called Exercise, and then, in its main method, create an ArrayList called stringArrayList. Add the following five strings to stringArrayList: “one”, “two”, ”three”, ”four”, ”five”. Then, use a for loop and the index of stringArrayList to print all these five strings out to the console. 2. For stringArrayList above, can you use an iterator to traverse the five strings inside, without using the index? 3. If change stringArrayList into a TreeSet, how do you traverse the five strings use an iterator? Implement an Iterator: 4. Create a class called StringArray that is able to store a number of String objects. Create an instance variable, String[] values, (internal data storage) of StringArray to store all the strings. 5. Create a constructor for StringArray, which is able to build an object of StringArray using the parameter. public StringArray(String[] values) 6. Make the class StringArray implements Iterable So that it…
Using JAVA, write a method that modifies an ArrayList<String>, moving all strings starting with an uppercase letter to the front, without otherwise changing the order of the elements. Write a test program to demonstrate the correct operation of the method.
In java A supermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. For that purpose, the store keeps an ArrayList.Create a class customer having id, name, gender, and bill provide appropriate getters/setters and constructors also provide toString method.In the Store class, make an ArrayList of customers, store name, and address implement methods public void addSale(Customer c) that will add customers to the arraylist.public void RemoveCustomer(int id);public void UpdateCustomerRecord(int Id);public displayAll();public String nameOfBestCustomer() to record the sale and return the name of the customer with the largest sale. public ArrayList nameOfBestCustomers(int topN) so that it displays the top customers, that is, the topN customers with the largest sales, where topN is a value that the user of the program supplies. Write a program that prompts following menu and ============================================…
The rotateLeft method takes an array of integers, and an integer number of places, and returns a new copy of the array that contains a "rotated" version of the input array. Rotation means that elements have been shifted leftwards by that number of places, moving elements off one end of the array and onto the other end. For example, [11, 12, 13, 14, 15] rotated left by 2 places results in [13, 14, 15, 11, 12].