4. a) What is meant by inheritance in OOP? Why does not Java support multiple inheritance? b) What will be the output of the following Java code? // filename Main.java class Main { public static void main(String args[]) { System.out.println(fun()); } int fun() { return 20; } }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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this is a java question complete 4 a b c  and provide right information and don't copy from internet please 

c) Consider a class called Fraction that has two data members, an int numer and an int denom
(for the numerator and denominator), write the following Java code:
Write a constructor that accepts values for the numerator and denominator as arguments.
Transcribed Image Text:c) Consider a class called Fraction that has two data members, an int numer and an int denom (for the numerator and denominator), write the following Java code: Write a constructor that accepts values for the numerator and denominator as arguments.
4. a) What is meant by inheritance in OOP? Why does not Java support multiple inheritance?
b) What will be the output of the following Java code?
// filename Main.java
class Main {
public static void main(String args[]) {
System.out.println(fun());
}
int fun() {
return 20;
}
}
Transcribed Image Text:4. a) What is meant by inheritance in OOP? Why does not Java support multiple inheritance? b) What will be the output of the following Java code? // filename Main.java class Main { public static void main(String args[]) { System.out.println(fun()); } int fun() { return 20; } }
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