How to construct objects with new operator, JAVA Programming

Assignment Help:

How to Construct objects with new operator?

class Car {

String licensePlate; // e.g. "New York 543 A23"
double speed; // in kilometers per hour
double maxSpeed; // in kilometers per hour

}
To instantiate an object in Java, use the keyword new followed through a call to the class's constructor. Here's how you'd form a new Car variable called c:

Car c;
c = new Car();

The first word, Car, declares the type of the variable c. Classes are types and variables of a class type required to be declared just like variables in which are ints or doubles.

The equals sign is the assignment operator and new is the construction operator.

At last notice the Car() method. The parentheses tell you this is a techniques and not a data type such as the Car on the left hand side of the assignment. This is a constructor, a method in which creates a new instance of a class. You'll learn more about constructors shortly. Therefore if you do nothing, then the compiler inserts a default constructor in which takes no arguments.

This is frequent condensed into one line like this:
Car c = new Car();


Related Discussions:- How to construct objects with new operator

Write a program of else statement in java, Write a program of else statemen...

Write a program of else statement in java? The else statement in Java // This is the Hello program in Java class Hello { public static void main (String args[]) { if (

Project, Prog. Concepts - Project The objective is to implement a menu - ba...

Prog. Concepts - Project The objective is to implement a menu - based system for Bank Accounts in order to simulate a very simple banking system. Many structures have to be declare

Differentiate between smtp and pop3 server, Differentiate between SMTP and ...

Differentiate between SMTP and POP3 server? SMTP (Simple Mail Transfer Protocol) is a protocol used to send and receive eMail messages over a TCP/IP network. While POP3 (Post

Give an example of class or static members, Give an example of Class or sta...

Give an example of Class or static Members? Below is a Car class along with such a speedLimit field and getSpeedLimit() method. public class Car { private String licensePla

What can an applet do, What Can an Applet Do? An applet can: • Draw ...

What Can an Applet Do? An applet can: • Draw pictures on a web page • Create a new window and draw in it. • Play sounds. • Receive input from the user by the keyboard or

Implement the list calss, Your next task is to implement the MovieList clas...

Your next task is to implement the MovieList class that manages the details for a list of DVD Movies read from the specified data file. The constructor will include a parameter tha

Illustrate about the java runtime environment, Java Runtime Environment (JR...

Java Runtime Environment (JRE) Java Virtual Machine is a part of a large system i.e. Java Runtime Environment (JRE). Every operating system and CPU architecture requires dif

What is an abstract class, What is an abstract class? Abstract class mu...

What is an abstract class? Abstract class must be extended/subclassed (to be useful). It serves as a template. A class that is abstract may not be instantiated (ie. you may not

HOW TO MAKE A TRANSCRIPT, Write a java program that computes the scores of ...

Write a java program that computes the scores of 10 students in the following units; 1.Java 2.PHP 3.Python 4.C++ 5.Perl Generate a transcript.

Write the hashcode() method of java.lang.object, Write the hashCode() metho...

Write the hashCode() method of java.lang.Object Anytime you override equals() you should also override hashCode(). The hashCode() method should ideally return the similar int f

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd