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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.
Write a program to proove that HashSet maintains random order
Develop Billing Software Project Description: Need software to print bills on A4 paper in the format provided. The details are shown below - 1. Serially generated Invoice
Specifications 1. readNumberOfEntries → This function will ask the user for a value greater than or equal to two. The function will keep asking values as long as the user prov
i am doing java and want projects with solutions to practice more and more
EJB elements operate inside a container environment and rely heavily on the container to give security. The four key services needed for the security are: 1. Identification :
How instant messaging works? Write the steps involved in this process? The Instant Messaging services available permit us to manage a list of people (contacts) that we interact
Explain Testing for Equality with equals? That's not what you expected. To contrast strings or any other kind of object you required to use the equals(Object o) techniques from
1) Listing of the source code ( named Rainfall.java ) for your program 2) Two sample output/execution/runs of your program Optional Group Work: This assignment may be done in
List down the Analytical Engine's elements name An analytical engine elements are as follows: Input Memory Processor Output.
An online music store offers all songs for 3$ each. The store requires members to prepay any amount of money they wish, and then download as many songs accordingly. You are require
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