Subclass can invoke "myMethod()" method from a parent class using:Select one:a. parent -> myMethod();b. parent::myMethod();c. parent.myMethod();d. myMethod() Which of the following is the correct syntax for declaring and initializing an associative array:Select one:a. $array_name=array(key=Dvalue, ..);b. $array_name=array(key==value, .);c. $array_name=array(key=>value, ...);d. $array_name=array(key=

1. By using the special name 'parent' which refers to the base class in the extends declaration of…

Answered: b. parent::myMethod();

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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Write a Complete C++ program to do the following : 1) Represent the Undirected Graph above in adjacency Matrix 12 x 12 . 2) Print the result of DFS and BFS traversal starting from a Given City . ----------------------------------------------------------------------------- Hint : By Using Borland C++ Compiler !!
Use Python for this question. Also please comment what each line of code means for this question as well: Inheritance (based on 8.38) You MUST use inheritance for this problem. A stack is a sequence container type that, like a queue, supports very restrictive access methods: all insertions and removals are from one end of the stack, typically referred to as the top of the stack. A stack is often referred to as a last-in first-out (LIFO) container because the last item inserted is the first removed. Implement a Stack class using Note that this means you may be able to inherit some of the methods below. Which ones? (Try not writing those and see if it works!) Constructor/_init__ - Can construct either an empty stack, or initialized with a list of items, the first item is at the bottom, the last is at the top. push() – take an item as input and push it on the top of the stack pop() – remove and return the item at the top of the stack isEmpty() – returns True if the stack is empty,…
Programming homework1) Simulated waiting queue in an Indian post office: In an Indian post office that not only distributes mail but also performs some financial activities like a savings bank, a lone postal worker attends to a single lineup of clients. As soon as a consumer enters the line, they are given a token # (serial number). After receiving assistance, the consumer exits the queue while the postal worker receives the token back. The employee could inquire as to how many consumers are still unattended at any one time.i) Put the system into practise using a suitable queue data structure, simulating the arrival and departure of consumers at random when the service is finished.

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