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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 Java Applet which will draw a face on applet as follows: b) Modify the program now by adding two Buttons (Java version of ActiveX Control) named Smily Fac
Explain continue statement with example? It is sometimes essential to exit from the middle of a loop. Sometimes you'll need to begin over at the top of the loop. Sometimes you'
Project Description: Introduction: SID C.A. (integradores) is a software company in Venezuela 15 years ago, and we are exploring the possibility of making mobile developments
Explain Subclasses and Polymorphism ? Car and Motorcycle are subclasses of MotorVehicle. If you instantiate a Car or a Motorcycle along with new, you can use in which object a
Integration: Neo4J, OpenGeo, Ikanow Project Description: I have an ongoing project to loosely integrate a variety of existing Open Source products: OpenGeo (geospatial server
Write HTML and JavaScript code for the needs shown in the diagram below? When ConvertoUpperCase button is pressed then the entered text is converted to upper case and result is
The formula for resistors linked in parallel is a little more complex. Given two resistors along with resistances R1 and R2 linked in parallel the equivalent resistance is given th
create thread without extending anything
Differentiate between SMTP and POP3 server? SMTP (Simple Mail Transfer Protocol) is a protocol used to send and receive eMail messages over a TCP/IP network. While POP3 (Post
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