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3 years ago

What is the output of the second println statement in the main method?

Computers and Technology

1 answer:

Doss [256]3 years ago

3 0

Answer:

B. f2.i is 1 f2.s is 2

Explanation:

In Java there are two type of variables, first is static variables and second is instance variable. static variable class variable which means you can have only one variable for all instance of that class. But instance variable will only for instance/object of that class.

For this code example, i is and instance variable, for every instance of class Foo, there will be separate i variable. but s is a static variable and that will be associated with class.

So in this program the first instance incremented the s variable and changed its value to 1 as int's default value is 0 in the constructor. So for second instance, the s value changed to 2 that's why it prints f2.s as 2 and as we know i is instance variable and every instance of foo class have there own copy of i variable so it's value will remain same for every instance.

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2 years ago

Design and implement a class called Sphere that contains instance data that represent the sphere’s diameter. Define the Sphere c

Zolol [24]

Answer:

Import java.awt.*;

import java.util.*;

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3 0

3 years ago

I.d 9934607467 p.a.s.s 54321 P.L.E.A.S.E J.O.I.N. Z.O.0.M. M.E.E.T.I.N.G

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Answer:

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3 years ago

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Fittoniya [83]

Explanation:

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3 years ago

Give a pseudo-code description of the O(n)-time algorithm for computing the power function p(x,n).Also draw the trace of computi

laila [671]

Answer:

p(x,n)

1. if(n==0) [if power is 0]

2. then result =1.

3.else

4. { result=1.

5. for i=1 to n.

6. { result = result * x. } [each time we multiply x once]

7. return result.

8. }

Let's count p(3,3)

3 $\neq$ 0, so come to else part.

i=1: result = result *3 = 3

i=2: result = result *3 = 9

i=2: result = result *3 = 27

Explanation:

here the for loop at step 4 takes O(n) time and other steps take constant time. So overall time complexity = O(n)

6 0

4 years ago