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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.
public class TreeTest { public static void main(String args[]) { Tree t = new Tree (); System.out.println("Populating"); t.insertItem(1); t
When multiple threads working, Synchronization is to lock a method for a certain object.
Explain the uses of JVM verifier The JVM "verifier" checks the code when it's loaded to verify that it has the correct structure --that it does not use an uninitialized pointer
Question: (a) The following is a simple example of a Java Class: // File: Welcome.java public class Welcome { public static void main(String args[]) { System.out.printl
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what is java
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Explain the both HashSet and TreeSet? HashSet is an unordered, unsorted Set. It's a Collection set which restrict duplicate elements and also repositioning of elements. I
You may call function from any other place into your JavaScript code. After the function is executed, the control goes back to other script which called it. alert('Example 1: t
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