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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.
Prompt the user for an int between an upper and lower boundary. Reuse the validateInput() method from project 2 to validate if the input is in bounds. If it is not, print an error
Question: (a) To be considered object-oriented(OO), a language should support abstraction, encapsulation, inheritance and polymorphism. Explain briefly each of the terms in
To load a text-file, read it line by line, and return the total number of alphanumeric tokens it contains and skip over the comments and double-quoted strings in the text-file whil
Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec
A portal is a service or a Web site that gives broad range of services and resources like e-mail, forums, search engines, weather information, news, on-line shopping, stock quotes.
Describe The ? operator in Java langauge? The conditional operator just works for assigning a value to a variable, using a value within a method invocation, or in a few other w
Project Description: We prepare and operate smartphone application.(Picture sharing and social networking) But there are problems in server side. It's very slow. So we
In JavaScript, what is event handling? What are the two categories of events? In java script we could capture events on do a few operation on the basis of which particular even
#decoding
RMI transport layer usually opens direct sockets to the server. Several Intranets have firewalls that do not accept this. To get through the firewall an RMI call may be embedded wi
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