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Q1. Is it always necessary to implement data hiding and encapsulation in a program? Explain with the help of an example in case yes or no.

Q1. Is it always necessary to implement data hiding and encapsulation in a program? Explain with the help of an example in case yes or no.

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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Use only java programming language.please give answer briefly and authentic with example according to the given question?

Q1. Is it always necessary to implement data hiding and encapsulation in a program? Explain with the help of an example in case yes or no. Q2. Class Citizen holds two states i.e., “çnic" of type integer and “name" of type String, and a setter and getter method of type void and integer respectively that sets and retuns the name state. An object of class Citizen is created in another class that holds main method. Explain what size is reserved for both classes in the memory. Q3. Why we need multiple constructors and multiple methods of the same name in a class? Provide an example to justify your answer. Q4. There are four states in a class Pen. These states are “color" of type String, "ink" of color String, "manufacturer" of type String, and "inkThickness" of type double. How many setter and getter methods you need in this class and why? Which states can be made private and why?||
Transcribed Image Text:Q1. Is it always necessary to implement data hiding and encapsulation in a program? Explain with the help of an example in case yes or no. Q2. Class Citizen holds two states i.e., “çnic" of type integer and “name" of type String, and a setter and getter method of type void and integer respectively that sets and retuns the name state. An object of class Citizen is created in another class that holds main method. Explain what size is reserved for both classes in the memory. Q3. Why we need multiple constructors and multiple methods of the same name in a class? Provide an example to justify your answer. Q4. There are four states in a class Pen. These states are “color" of type String, "ink" of color String, "manufacturer" of type String, and "inkThickness" of type double. How many setter and getter methods you need in this class and why? Which states can be made private and why?||
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