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Explain encapsulation and inheritance with suitable examples.

Explain encapsulation and inheritance with suitable examples.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1.Explain encapsulation and inheritance with suitable examples.

 

2.Write a program that prompts the user to enter the minutes and displays the

number of years and days for the minutes. For simplicity, assume a year has 365

days.

 

 

3.What is the purpose of Static variable in Java? Give example. Why is main

function in a Java program static and public?

 

4.Write a program that prompts the user to enter a point (x, y) and checks whether

the point is within the circle centered at (0, 0) with radius 10.

For example, (4, 5) is inside the circle and (9, 9) is outside the circle.

 

4a) Assume a vehicle plate number consists of three uppercase letters followed by four digits. Write a program to generate a plate number. b) Write two overloaded methods that return the average of an array with the following headers: public static int average(int[] array) public static double average(double[] array) (Stopwatch) Design a class named StopWatch. The class contains: Private data fields startTime and endTime with getter methods. I A no-arg constructor that initializes startTime with the current time. I A method named start() that resets the startTime to the current time. I A method named stop() that sets the endTime to the current time. 1 A method named getElapsedTime() that returns the elapsed time for the stopwatch in milliseconds. Draw the UML diagram for the class and then implement the class.
Transcribed Image Text:4a) Assume a vehicle plate number consists of three uppercase letters followed by four digits. Write a program to generate a plate number. b) Write two overloaded methods that return the average of an array with the following headers: public static int average(int[] array) public static double average(double[] array) (Stopwatch) Design a class named StopWatch. The class contains: Private data fields startTime and endTime with getter methods. I A no-arg constructor that initializes startTime with the current time. I A method named start() that resets the startTime to the current time. I A method named stop() that sets the endTime to the current time. 1 A method named getElapsedTime() that returns the elapsed time for the stopwatch in milliseconds. Draw the UML diagram for the class and then implement the class.
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