Given the following code and assuming ArrayStackis a generic class: bool ArrayStack::doSomething() { bool result false ; if (!isEmpty()) { top--; result true ; } return result; } What method is this? pop() peek() virtual destructor default constructor

Given the following code and assuming ArrayStackis a generic class: bool ArrayStack::doSomething() { bool result false ; if (!isEmpty()) { top--; result true ; } return result; } What method is this? pop() peek() virtual destructor default constructor

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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Help me run this code import java.util.*;class Main{static int max_kids;HashMap<String,ArrayList<Section> > sports ;public Main(int max){max_kids = max;sports = new HashMap<>();}static class Person{String name;int age;public Person(String name , int age ){this.name = name;this.age = age;}}static class Trainer extends Person{int id;public Trainer(int id , String name , int age ){super(name , age );this.id = id;}}static class Kid extends Person{int id;public Kid(int id , String name , int age ){super(name , age );this.id = id;}}static class Section{int section;String course ;Trainer instructor;int size ;HashMap<Integer ,Trainer > Trainers;public Section(int section , String course , Trainer instructor){this.section = section;this.course = course;instructor = this.instructor;Kids = new HashMap<>();this.size = 0; }public void addKid(int id ,Kid s1){if(Kids.containsKey(id) || size == max_Kids){System.out.println("Adding student to Section is not…
Create a SameItem Interface: The SameItem interface will be a generic interface.SameItem will have a single method: isSameAs(T) that returns a boolean
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Assume the following tester code (see Figure 1) is in the main class that produces the output shown in Figure 2 below. Provide two static generic methods that are called by the main method shown below: • isMin(.) generic method that takes an object value and an array of objects; the method checks and returns whether the given object equals to the smallest element value of the passed Array. Hint: use Comparable interface of the standard Java library, where Comparable interface has a single method called "compareTo". • present(.) generic method to print the passed Array elements separated by "| " as shown in the sample output run below (see Figure 2) Tester Code (Figure 1): public static void main(String[] args) { Integer[] ages = {16, 70 , 15, 40, 3, 22}; Double [] scores = {85.7, 38.9, 72.75, 64.9, 15.3, 99.6}; String [] persons = { "Hamed", "Zinab", "Amal", "Naif", "Khalid"}; //call generic method isMin to return answer System.out.println("The youngest person is 3 years old? " +…