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

Difference between hashmap and hash table, Difference between HashMap and H...

Difference between HashMap and Hash table HashMap: It allow us to have null values and also one null key It is Unsynchronized. Iterator in HashMap is Fail-Safe.

Why use rmi when we can handle the same benefits from ejb?, EJBs are distri...

EJBs are distributed elements, which need the RMI framework for object distribution. An EJB application server gives more services like object pooling, transaction management, data

Explain role of actionservlet , ActionServlet performs the role of Contro...

ActionServlet performs the role of Controller: ? Process user requests ? Verify what the user is trying to achieve according to the request ? Pull data from the model (if

Multithreading, write a java program implementing multithreading concept in...

write a java program implementing multithreading concept in hotel management

Display array elements by using for-each loop, Need assignment help , on th...

Need assignment help , on the topic “Demonstrate a console-program” Demonstrate a console-program to create an array of integers and Initialize the array and assign the values i

Use of weblogic platform in project, Use of WebLogic Platform in Project: ...

Use of WebLogic Platform in Project: Technologies Tools: Weblogic 8.1, Solaris 9, MQ Series 6.0, iplanet 6.1, Mercury Test Director. Project Overview: Wellington Manag

What is an intelligent system, What is an intelligent system? Intellige...

What is an intelligent system? Intelligent system is a SW programs or SW and HW systems designed to perform complex tasks employing strategies in which mimic some aspect of hum

Explain java.util.random package, Explain java.util.Random package? The...

Explain java.util.Random package? The java.util.Random class permits you to create objects which generates pseudo-random numbers along with uniform or gaussian distributions ac

Define the key weakness of the web, Define the key weakness of the web? ...

Define the key weakness of the web? the key weakness of the web is Initially web was designed only for humans to read not for computers to understand it.

We need a java developer, We need a Java Developer a) Having 4.6 years o...

We need a Java Developer a) Having 4.6 years of I.T experience Java, J2EE, spring, Hibernate, JSF, Swings. b) Analyze, identifying and understanding the client requirements a

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