Difference between object declaration and object creation, JAVA Programming

Assignment Help:

Question:

(a) (i) Describe the purpose of comments when writing programs in Java.

(ii) Name the types of comments available and illustrate with simple examples.

(b) (i) What is the purpose of the ‘import' statement in Java programs?

(ii) With the help of an example show the syntax for importing one class from a package and all the classes from that package.

(c) (i) Describe the steps we need to write a Java application and to run the program. Also describe the tools required for each step.

(ii) Explain the difference between object declaration and object creation. Explain your answer with a suitable example.

(d) Write a Java application that accepts a person's weight and displays the number of calories the person needs in one day. A person needs 38 calories per Kg of body weight, so the formula would be

calories = bodyweight * 38;

Here you may use an input dialog from the class JOptionPane to request the user to enter the body weight and a message dialog to output the calories needed.


Related Discussions:- Difference between object declaration and object creation

What is includeaction, The IncludeAction class is useful when you require t...

The IncludeAction class is useful when you require to integrate Struts into an application that uses Servlets. Use the IncludeAction class to contain another resource in the respon

In programming what is an object, In programming, what is an object? Ob...

In programming, what is an object? Object is a named collection of properties (data and state) & methods (instructions, behaviour). Objects are key to understanding object-orie

What is rmi, RMI is a set of APIs that permits to build distributed applica...

RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to explain remote objects to turn local method invocations into remote method invocations.

Difference b/w deep cloning and shallow cloning of object, The default natu...

The default nature of an object's clone() function automatically provides a shallow copy. So to need a deep copy the classes have to be edited or adjusted.   Shallow co

Methods, I need the five methods public class Ex1Program { public void...

I need the five methods public class Ex1Program { public void start() { // Step 1. Declare and construct an array of 19 Movie objects (call the array films)

Why hub is used in networks, Why hub is used in networks? HUB: Hub is n...

Why hub is used in networks? HUB: Hub is networking component that can be used to connect the networks and it could also be used to extend the size of networks. In a simple way

Moving test, After refactor the main class to become abstract class, I want...

After refactor the main class to become abstract class, I want to move test method from tset clas of main class to subclass, how to do that?

Write a short note on image preloading process, Write a short note on image...

Write a short note on image preloading process? The primary use of image preloading procedure is to download the image within the cache before it is actually required to displa

How to implementing the cloneable interface, How to Implementing the Clonea...

How to Implementing the Cloneable Interface The java.lang.Object class contains a clone() method which returns a bitwise copy of the current object. protected native Object cl

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