don't use others answersfollow the directions on the photo 3. Consider the following interface defining the operations of a stack data structure:public interface Stack{public boolean isEmpty( );public void push(E element);public E pop( );public E getTop( );}Assume makeStringStack ( ) returns a reference to an object implementing Stack andmakeCharStack( ) is implementing Stack.In the following sequence of statements, identify the statements, if any, that are invalid and tellwhy.Stack stringStack = makeStringStack( );stringStack.push(“coffee");stringStack.push('T');Stack characterStack =makeCharStack(O;characterStack.push(new Character('Q'));characterStack.push(new Character('R’));characterStack.push(“S");

Stack is a non-linear data structure that follows the LIFO, last in the first out model for…

Answered: 3. Consider the following interface…

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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Modify the C++ class for the abstract stack type shown belowto use a linked list representation and test it with the same code thatappears in this chapter. #include <iostream.h>class Stack {private: //** These members are visible only to other//** members and friends (see Section 11.6.4)int *stackPtr;int maxLen;int topSub;public: //** These members are visible to clientsStack() { //** A constructorstackPtr = new int [100];maxLen = 99;topSub = -1;}~Stack() {delete [] stackPtr;}; //** A destructorvoid push(int number) {if (topSub == maxLen)cerr << "Error in push--stack is full\n";else stackPtr[++topSub] = number;}void pop() {if (empty())cerr << "Error in pop--stack is empty\n";else topSub--;}int top() {if (empty())cerr << "Error in top--stack is empty\n";elsereturn (stackPtr[topSub]);}int empty() {return (topSub == -1);} }
Implement a program in C++ that has the following three parts and each does the following: Implements in C++ a Stack ADT (save the file as StackADT.h) Implements all the necessary methods (behavior) of a Stack (save the file as StackADT.cpp) Implements in C++ a main function (the client or application program) that creates and uses Stack objects (save the file as StackMain.cpp). This main function should be able to do the following: It should be able to read a given text file as input, It should be able to get each input value from the input file (one word at a time) and store it (push) on the Stack object until it stores all the words from the input file. It should be able to retrieve an item from the stack and display it on the screen, and then delete (pop) that item from the stack, and repeat until it retrieves all the items from the stack object. NOTE: Please make sure you debug, run, test and see the program working correctly before submitting. Submit the files…
Write a C++ program to implement the Stack operations using array.The class Stack with the following attributes. Data type Attributes int size int* elements int* popElements int top Create default constructor and a parameterized constructor with size as an argument Stack(int size) In the constructor allocate the memory for elements[] array by the given size and for popElements[] by 100 then initialize the top as -1.In the class Stack define the following methods. Method Description isEmpty() This method returns true if the stack is empty. Otherwise returns false. push() The method pushes the given data to the elements stack. popToPush() This method pop the data from the elements stack and pushes it to the popElements stack. If the elements stack becomes empty print "Stack is empty" and display the data of the popElements stack. display() This method displays the data of the popElements stack. In the main method get the data for the stack from the user.…
TRUE or FALSE? Answer the following question and state the reason why: In a dynamic stack, the node that was popped is deleted. In a dynamic stack, the pointer top stays at the head after push operation. STL function top returns a reference to element at the top of the stack. STL empty function will yield a value of true if the stack has elements.
Please with explanation \\\\\\\\\\\\\\\\\\\ JAVA\\\\\\\\\\\\\\\\\\\\\\\\\\ //21.3 * 3.1 / ( 14 + (6+2.1)^3) } //TODO public void convertToPostFix() { //create a stack of operators. //create Vector postFix //Go through inFix from 0 to size-1 //if current element is operand add it to postFix //if operator then as long as top of stack is operator of higher or equal //precedence pop it from stack and add it to postFix //push operator to stack //if open parenthesis push it to stack //if close parenthesis as long as top of stack is not open parenthesis, pop from //stack and add it to postFix. //pop the open parenthesis from stack (don't add it to postfix) //empty stack into postFix. } //TODO public double evaluate() { double result; return…
Write a C++ program to create a class called STACK using an array of integers. Implement the following operations by overloading the operators ‘+’ and ‘-‘. s1 = s1 + element; where ‘s1’ is an object of the class STACK and element is an integer to be pushed on to the top of the STACK. s1 = s1-; where ‘s1’ is an object of the class STACK and ‘-‘ operator pops the element. Handle the STACK empty and STACK full conditions.
Please be thorough with explanation (a) Consider implementing a stack as a class that relies on a singly linked list, maintaining pointers to both the start and end of the singly linked list in the main object. You consider two possibilities. The first is to push (insert) to the beginning and pop (remove) from the beginning of the linked list. The second is to push to the end and pop from the end of the linked list. Is one of these possibilities better than the other? Briefly explain your answer.
Write C++ code to implement Stack using object orientation. Write... Write C++ code to implement Stack using object orientation. Write C++ code to convert the Stack implemented in [1] to a Dynamic Stack with necessary modifications and extensions.
TRUE or FALSE? Please answer the following question and state the reason why: Thank you! In a Dynamic Stack, the pointer top stays at the head after a push operation. During a Pop operation in Static Stack, the elements are being moved one step up. In a dynamic implementation of stack, the pointer top has an initial value of null. STL empty function will yield a value of true if the stack has elements.
Write a program in C that implements a stack data structure with the following functionalities: Push an element onto the stack. Pop an element from the stack. Peek at the top element of the stack without removing it. Check if the stack is empty. Display the elements of the stack. Your program should use dynamic memory allocation to create the stack and should not use any pre-built stack libraries or functions. To test your program, write a main function that creates a stack, pushes some elements onto it, pops some elements from it, peeks at the top element, checks if the stack is empty, and displays the elements of the stack. Make sure to handle any potential errors that may occur, such as trying to pop from an empty stack or trying to push onto a full stack.
For the following problems, you need to submit a python code that performs the required functions. Q1: (Stack & Queue) 1. Write a program that utilizes the LinkedStack class and LinkedQueue class to perform the following function. Input :empty stack and a Queue Required: reverse the order of the queue. // you must use the methods of the stack and queue class // Q2) Write a member functions to the class ( CircularQueue ) that performs the followings: 1. Sum-even(CQ) : Print the sum of all even numbers stored in CircularQueue. 2. Perform the followings: a. Create two circular linked lists ( CQ1, CQ2). b. Merge the two circular linked lists in one →CQ1. //Remember: you need to use the class ( CircularQueue ) methods.//
I have already done number 1. I just need help with number 2. Implement Stack<E> with an internal LineNodePlus<E>. You have been given the code for the StackADT<E> interface and all of the List files needed. You must come up with a new Stack.java that implements the StackADT interface and uses a LineNodesPlus internally to store the stack. Construct test cases for the Stack (StackTest.java) to ensure it works correctly. StackADT.java public interface StackADT<E>{ // Stack class ADT /** * Clears the stack. */ public void clear(); /** * Pushes argument it onto the stack. Argument is stored in the top of the * stack. Returns false if the stack is out of space. * * @param it value to be pushed onto the stack * @return true if the value is stored */ public boolean push(E it); /** * Pop and return the value at the top of the stack. * * @return value stored at the top of the stack */ public E…

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