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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.
examples
A BeanFactory is like a factory class that having a collection of beans. The BeanFactory holds Bean Definitions of multiple beans within itself and then instantiates the bean whene
explain multiple inheritance in java ?.
Task 1- Design the complete user interface of the simulation. Task 2 -Design the record structures of the text files that are required to drive the working simulation. Populate
how class and object work
What does it mean that a method or class is abstract? An abstract class cannot be instantiated. Abstract methods may only be included in abstract classes. However, an abstract
The SwitchAction class gives a means to switch from a resource in one module to another resource in a dissimilar module. SwitchAction is useful only if you have multiple modules in
Relate Java with C/C++ Very similar C/C++ syntax, operators, etc. Core language is simpler than C++ -- no pointers, no operator overloading, and no multiple inheritance.
Write a program called BaseConverter that prompts (asks) the user for a base 10 number and another number, between 2 and 10 inclusive. This second number is the base to which to co
Explain Vector or Object-Oriented Graphics? The representation of graphical objects, like as lines, circles, arcs, and rectangles, along with mathematical formulas. This techni
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