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What will be the output of the following C++ code?
    #include <iostream>
    using namespace std;
    main()
    {
        double a = 21.09399;
        float b = 10.20;
        int c ,d;
        c = (int) a;
        d = (int) b;
        cout << c <<' '<< d;
        return 0;
    }
  • a)
    20 10
  • b)
    10 21
  • c)
    21 10
  • d)
    10 20
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What will be the output of the following C++ code? #include <iostr...

Explanation:

Conversion of double to int:
- When a double value is converted to an int, the decimal portion is truncated.
- In this code, the value of 'a' is 21.09399 which is converted to an integer 'c'. So, 'c' will be 21.

Conversion of float to int:
- Similarly, when a float value is converted to an int, the decimal portion is truncated.
- In this code, the value of 'b' is 10.20 which is converted to an integer 'd'. So, 'd' will be 10.

Output:
- As per the above conversions, the output of the code will be:
21 10

Therefore, the correct answer is option C - 21 10.
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Community Answer
What will be the output of the following C++ code? #include <iostr...
In this program, we are casting the operator to integer, So it is printing as 21 and 10.
Output:
$ g++ op5.cpp
$ a.out
21    10
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What will be the output of the following C++ code? #include <iostream> using namespace std; main() { double a = 21.09399; float b = 10.20; int c ,d; c = (int) a; d = (int) b; cout << c << << d; return 0; }a)20 10b)10 21c)21 10d)10 20Correct answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What will be the output of the following C++ code? #include <iostream> using namespace std; main() { double a = 21.09399; float b = 10.20; int c ,d; c = (int) a; d = (int) b; cout << c << << d; return 0; }a)20 10b)10 21c)21 10d)10 20Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the output of the following C++ code? #include <iostream> using namespace std; main() { double a = 21.09399; float b = 10.20; int c ,d; c = (int) a; d = (int) b; cout << c << << d; return 0; }a)20 10b)10 21c)21 10d)10 20Correct answer is option 'C'. Can you explain this answer?.
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