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

Classes, what is the default modifiers for methods in interface

what is the default modifiers for methods in interface

How to get data from the velocity page in a action class, We can get the va...

We can get the values in the action classes by using data.getParameter("variable name described in the velocity page");

What is meant by weaving, The process of applying aspects to a target objec...

The process of applying aspects to a target object to form a new proxy object is known as Weaving. The aspects are woven into the target object at the verified join points.

I need liferay especialist, I need Liferay Especialist Project Descripti...

I need Liferay Especialist Project Description: We want a JAVA + JSF + Portlets expert Liferay expertise is needed Big Data and Online Tools + Multilingual Portal & Websit

What is setter methods explain with an example, What is Setter Methods expl...

What is Setter Methods explain with an example? Setter methods, also called as mutator methods, merely set the value of a field to a value specified through the argument to the

Need the following code for double variables instead of int, Need the follo...

Need the following code in double var instead of integer. import javax.swing.*; public class arrayVar { public static void main (String[] args) //This is our main method prompt

How to write exception subclasses, How to Write Exception Subclasses ? ...

How to Write Exception Subclasses ? Most exception subclasses inherit all their functionality from the superclass. Each subclass majorly serves as a marker for a various types

Explain break statement in a loop, Explain break statement in a loop ? ...

Explain break statement in a loop ? A break statement exits a loop before an entry condition fails. For instance, in this variation on the CountWheat program an error messa

Area under the curve, write a program to find the area under the curvey y=f...

write a program to find the area under the curvey y=f(x) between x=a and x=b.integrate y=f(x) between the limits of a and b. the area under a curve between two points can be found

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