3.Complete the following table that shows a series of stack operations and their effects on aninitially empty queue Q of character.MethodReturn Value First←Q←Lastenqueue(p)[p]enqueue(r)[p, r]size()2[p, r]first()Р[p, r]enqueue(o)[p, r, o]isEmpty()false[p, r, o]dequeue()Р[r, o]dequeue()size()dequeue()isEmpty()enqueue(g)enqueue (h)first()dequeue()size()first() 4.Refer to the given program. Draw a qPerson diagram to represent the following queueoperations, step-by-step as the program executes. Show the output, if any.public class MyQ1 [public static void main(String[] args) {QueueqPerson = new Queue ();qPerson.enqueue ("Mas");qPerson.enqueue ("Ali");System.out.println (qPerson);qPerson.dequeue ();qPerson.enqueue ("Ina");System.out.println (qPerson.dequeue ());qPerson.enqueue ("Azura");qPerson.enqueue ("Abu");String str = qPerson.dequeue ();qPerson.enqueue (str + "Ahmad");System.out.println (qPerson);System.out.println (qPerson.size());System.out.println(str qPerson.peek ());=

3) Comple the following table that shows the stack operation 4) Coding to define the enqueue and…

3. Complete the following table that shows a series of stack operations and their effects on initially empty queue Q of character. Method Return Value First Q←Last enqueue(p) [p] enqueue(r) [p. 1] size() 2 [p, r] first() P [p, r] enqueue(o) [p, r, o] isEmpty() false [p, r, o] dequeue() Р [r, o] dequeue() size() dequeue() isEmpty() enqueue(g) enqueue(h) first() dequeue() size() first()

3. Complete the following table that shows a series of stack operations and their effects on initially empty queue Q of character. Method Return Value First Q←Last enqueue(p) [p] enqueue(r) [p. 1] size() 2 [p, r] first() P [p, r] enqueue(o) [p, r, o] isEmpty() false [p, r, o] dequeue() Р [r, o] dequeue() size() dequeue() isEmpty() enqueue(g) enqueue(h) first() dequeue() size() first()

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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The following operations are applied to an empty stack s:s.push(1)s.push(2)s.push(3)s.pop()s.push(4)s.pop()The result of a further s.pop() is . . .a) a numberb) undefinedc) 4d) 2
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Project Overview: This project is for testing the use and understanding of stacks. In this assignment, you will be writing a program that reads in a stream of text and tests for mismatched delimiters. First, you will create a stack class that stores, in each node, a character (char), a line number (int) and a character count (int). This can either be based on a dynamic stack or a static stack from the book, modified according to these requirements. I suggest using a stack of structs that have the char, line number and character count as members, but you can do this separately if you wish.Second, your program should start reading in lines of text from the user. This reading in of lines of text (using getline) should only end when it receives the line “DONE”.While the text is being read, you will use this stack to test for matching “blocks”. That is, the text coming in will have the delimiters to bracket information into blocks, the braces {}, parentheses (), and brackets [ ]. A string…
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