Question

Q1. How many printing statements are ok to be executed? A. O B. 1 C. 2 D. 3 E. 4 package p1; public class Fruit { int price = 5; public int weight = 10; public int getPrice(){ return this.price; } package p2; import p1.Fruit; import p1.Apple; public class MyProg { public static void main(String[] args) { Apple a = new Apple( ); System.out.println(this.price); System.out.println(sup er.price); System.out.println(a.price); System.out.println(a.weight); System.out.println(a.getPrice()); } } package p1; public class Apple extends Fruit { int price = 10;

Answer 1

Q.1)

Solution)Option C 2 is the correct answer

Explanation:

i)The first print statement is wrong since this refers to the current scope and there is no variable price in MyProg.

ii)The second print statement is wrong since the class MyProg has the superclass object(Every class in java is a subclass of object) and there is not variable price there.

iii)The third print statement is wrong since MyProg is in package 2 and price has a access modifier of default which has a visibility of same package and not in different package and Apple and MyProg are in different package.

iv)The fourth print statement is correct since weight is public in Fruit and it can be accessed outside the package also.

v)The fifth print statement is also correct since a.getPrice() is public in Fruit and it can be accessed outside the package also.

Q.2)

Solution)Option C 9 is the correct answer

Explanation: When a base class is instantiated its superclass constructor also gets called and thus for each Gala object created each constructor of Apple and Fruit gets called and thus three print statements are executed for each object creation, here two Gala objects are created and thus 6 print statements and 3 more print statements thus total 9 print statements are executed.Consider the output below for prioper reference:

Fruit Apple Gala Fruit Apple Gala 10 15 2 2

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