How can you gain access to a class which is not automatically available to your program?use the entire path name with the class nameO import the classO import the package to which the class belongsO any of the above If you define a local variable that has the same name as a data field in the same class, what happens?a compiler error occursa run-time error occursthe data field simply overrides the local variablethe local variable simply overrides the data field

you can use any of the following methods:a) Use the entire path name with the class name: If the…

How can you gain access to a class which is not automatically available to your program? use the entire path name with the class name import the class import the package to which the class belongs any of the above

How can you gain access to a class which is not automatically available to your program? use the entire path name with the class name import the class import the package to which the class belongs any of the above

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

Java programming If we send an int parameter to a method, and the parameter value is changed inside the method, will that affect the original value?
True or False: When numerous parameters are supplied to a method, the order in which they are passed is irrelevant.
1. Dummy GUI Application by Codechum Admin A GUI Application is an application that has a user interface that the user can interact with. For this program, we will be simulating this behavior. First, implement another class called Checkbox which implements the Clickable interface which has only one method: public void click(). The Checkbox will have the following properties: private boolean isChecked (defaults to false upon the creation of object) private String text Additionally, it should have the following methods: the implementation of the click() method If the isChecked is currently false, this will set the isChecked to true and will then print the message "Checkbox is checked". If it is currently true, this will set the isChecked to false and will then print the message "Checkbox is unchecked". Note that the messages to be printed should have also print a new line at the end. an override of the toString() method which returns the message: "Checkbox ({text} - Clicked…
python code: 1.Create an empty class called Car. 2.Create a method called initialize in the class, which takes a name as input and saves it as a data attribute. 3.Create an instance of the class, and save it in a variable called car. 4.Call the initialize method with the string “Ford".
Match the following: This keyword is to declare a user-defined package. Choose. Choose.. public import polymorphism Integer This is the most restrictive access specifier/modifier in Java. This is the Wrapper class for int datatype. A characteristic of OOPS which means one name, many forms. protected package private This class is defined inside another class. Inner class Inheritance outer class Encapsulation Double Finish attempt .
When you instantiate an object from a class, you give a name to this particular object so that your program can distinguish it from other objects you instantiate from the same class. True False
When you pass an object that is an instance of a class as an argument, what is passed into the parameter variable?
Summary In this lab, you create a derived class from a base class, and then use the derived class in a Python program. The program should create two Motorcycle objects, and then set the Motorcycle’s speed, accelerate the Motorcycle object, and check its sidecar status. Instructions Open the file named Motorcycle.py. Create the Motorcycle class by deriving it from the Vehicle class. Call the parent class __init()__ method inside the Motorcycle class's __init()__ method. In theMotorcycle class, create an attribute named sidecar. Write a public set method to set the value for sidecar. Write a public get method to retrieve the value of sidecar. Write a public accelerate method. This method overrides the accelerate method inherited from the Vehicle class. Change the message in the accelerate method so the following is displayed when the Motorcycle tries to accelerate beyond its maximum speed: "This motorcycle cannot go that fast". Open the file named MyMotorcycleClassProgram.py. In the…
What are the advantages of passing this data into a method as opposed to just passing it into the current class object?
When a class uses dynamically allocated objects for its members and it does not have a copy assignment operator what of the following could happen (mark all that apply) There could be runtime errors There could be a double frees (double delete errors) There could be memory leaks Nothing happens the compiler provides the correct constructor There could be compile time errors
Java A class always has a constructor that does not take any parameters even if there are other constructors in the class that take parameters. Choose one of the options:TrueFalse
JAVA PROGRAMMING - Write a program that displays the employees Ids together with their first and last names. Use two classes. The first class contains the employee data and separate methods to set and get the ID’s and names. The other class creates objects for the employees and uses the objects to call the methods. Create several employees and display their data.