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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.
Iterate through list of Fish. For each fish that isAlive, do the following: * * 1. If this fishIsSurroundedByRocks, DO NOTHING, and move on to the next fish. * (This f
Explain the term array and Scope of Variable? Defining the space in that a variable is effective is known as describing the scope of a variable. A variable can be either local
tell the source code
Write names of the DoS attack's phases? DoS (Denail of service): DoS attach has in total 3 kinds of phases and below they are listed: 1. Search 2. Arm 3. Attack
Implement a program to query and update the text database for a library using a client/server model allowing multiple clients safe access to the database, and using a producer-cons
You should override the hashCode() and equals() functions from the Object class. The default implementation of the hashcode() and equals(), which are inherited from the java.
#include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int numtraps; main( ) { void input( void );
Your FaceBooklet application will use the classes you wrote for Program 3. Start by creating a copy of your Program 3 project with a new name (say, "Program4"). Note that you ca
In this exercise, I want you to generate password based on random number generator. Develop an application that keeps track of the URL, username and password. I have listed few st
Design pattern : As you may look from the diagram given below, containers collect components. Sometimes you want to accumulate a container to another container. So, a container co
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