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Question:
(a) What are the main differences between an object and a class? Illustrate with appropriate examples.
(b) Differentiate between a global variable and a local variable. You may use a simple Java program to illustrate your answer.
(c) What do you understand by the term ‘constructor' in Java? Explain your answer with an appropriate example.
(d) Declare and initialise an array of type float of size 5 to store the marks obtained by a student at his examinations. Initialise the array with the following values {65, 57, 75, 49, 88}.
Write the code fragments in Java to find:
(i) the average mark obtained by the student at the examinations. (ii) the highest mark obtained by the student. (iii) the lowest mark obtained.
String concatenation and comparison public class StringTest { public static void main(String[] args) { int i = 4; int j = 5; System.out.println ("Hello" + i); // wi
What is the difference between a while statement and a do while statement? A while statement checks at the starting of a loop to see whether the next loop iteration should occu
Question: (a) To be considered object-oriented(OO), a language should support abstraction, encapsulation, inheritance and polymorphism. Explain briefly each of the terms in
s=1/2at*2
In Exercise 1 you were asked to modify the Sorts program so that it would output the number of swaps used by a sorting method. It is a little more difficult to have the program als
Having one instance overall the application.eg.: Loggers
Write code in JavaScript language to show the odd numbers among 20 to 100 using FOR statement. Note: No requirement to write whole HTML program. Just JavaScript code of need p
Difference between the File and Random Access File classes? Ans) The File class encapsulates the files and directories of the local file system. The Random Access File class giv
For an assignment I need to write an array program to go along with an instance variable. I keep getting the no main class error when I run my program.
Benefits of AOP (Aspect Oriented programming) OOP can give the system level code like transaction management, logging, security etc to scatter throughout the business logic. A
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