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Interview Questions on Enum in C++ : (7)

Question: 1

Find the output of below program
#include<iostream>
using namespace std;
enum color{
	Black,
	blue,
	red	
};
int main()
{
    color obj = blue;
    cout<<obj;
    return 0;
}

(A) blue
(B) 2
(C) 1
(D) None of these

Compiler
Level: Practitioner Category: enum
[Posted by: | ]

Question: 2

#include<iostream>

enum color{
	black=1,
	blue,
	red	
};
int main()
{
    color obj = blue;
    std::cout<<obj;
	return 0;
}

(A) blue
(B) Compilation Error
(C) 1
(D) 2

Compiler
Level: Practitioner Category: enum
[Posted by: | ]

Question: 3

#include<iostream>
using namespace std;
enum color{
	black=1,
	blue,
	red	
};
int main()
{
    color obj = yellow;
    cout<<obj;
    return 0;
}

(A) yellow
(B) black
(C) Compilation Error
(D) 3

Compiler
Level: Practitioner Category: enum
[Posted by: | ]

Question: 4

#include<iostream>
using namespace std;
enum color{
	black,
	blue,
	red	
};
int main()
{
    color obj;
    cout<<obj;
    return 0;
}

(A) black
(B) 0
(C) -1
(D) Some Garbage Value

Compiler
Level: Practitioner Category: enum
[Posted by: | ]

Question: 5

What should be the output of below program? Please note all programs are compiled on GCC compiler.
#include<iostream>
using namespace std;
enum color{
	black,
	blue,
	red	
};
int main()
{    
    color obj;
    cout<<sizeof(obj);
    return 0;
}

(A) 0
(B) 1
(C) 2
(D) 4

Compiler
Level: Practitioner Category: enum
[Posted by: | ]

Question: 6

#include<iostream>

enum color{
	black=-5,
	blue,
	red	
};
int main()
{    
    color obj = blue;
    std::cout<<obj;
    return 0;
}

(A) Compilation Error
(B) 0
(C) 1
(D) -4

Compiler
Level: Practitioner Category: enum
[Posted by: | ]

Question: 7

After the following statement executes, what value will the MAPLE enumerator be stored as, in memory?

enum Tree { OAK, MAPLE, PINE };

(A) MAPLE
(B) 2
(C) ‘M’
(D) 1

Compiler
Level: Beginner Category: enum
[Posted by: | ]

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Interview Questions on Enum in C++ : (7)

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