Tag: programming languages

Questions Related to programming languages

Can a static variable be Serialized
technology programming languages

  1. True

  2. False

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Correct Option: B

Which of the following pairs is not supported in Java
technology programming languages

  1. Multiple Inheritance and Overloading

  2. Operator Overloading and Overriding

  3. Multiple Inheritance and Operator Overloading

  4. Pointers and Single Inheritance

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Correct Option: C

Which of the below methods in Java is not used with threads
technology programming languages

  1. wait()

  2. run()

  3. Sleep()

  4. begin()

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Correct Option: D

What will be the output of the following program : #define Swap if (a != b) { \ temp=a; \ a = b; \ b = temp; \ //Swapping Done } void main() { int a=10,b=5,temp; Swap; printf("a=%d a=%d",a,b); }
technology programming languages

  1. Compile-Time Error

  2. a=5 b=10

  3. a=10 b=5

  4. None of the above

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Correct Option: A

What will be the output of the following program : void main() { int val=50; void ptr; ptr=&val; printf("%d %d",val,(int *)ptr); }C
technology programming languages

  1. Compile-Time Error

  2. 50 50

  3. 50 0

  4. None of the above

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Correct Option: B

What will be the output of the following program : void main() { int a=5,b=6; Printf("%d %d %d",a,b,--a*++b); }
technology programming languages

  1. Compile-Time Error

  2. 5 6 30

  3. 4 7 28

  4. None of the above

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Correct Option: C

What will be the output of the following program : void main() { int val=5; void ptr; *(int *)ptr=5; val=ptr; printf("%d %d",(int )val,(int *)ptr); }
technology programming languages

  1. Compile-Time Error

  2. Unpredictable

  3. 5 5

  4. None of the above

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Correct Option: C

What will be the output of the following program : void main() { int val=2; val = - --val- val--- --val; printf("%d",val); }
technology programming languages

  1. Compile-Time Error

  2. 3

  3. -1

  4. 0

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Correct Option: C

What will be the output of the following program : void main() { int i, n =10; for (i=1; i
technology programming languages

  1. 84

  2. 840

  3. 852

  4. 864

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Correct Option: C

What will be the output of the following program : void main() { printf("%f",123.); }

technology programming languages

  1. 123

  2. Compile-Time Error

  3. 123.00

  4. 123.000000

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Correct Option: D

AI Explanation

To answer this question, let's go through the options one by one:

Option A) 123 - This option is incorrect because the code includes a format specifier "%f" in the printf function. This format specifier is used to print floating-point numbers, and it specifies that the number should be printed with six digits after the decimal point.

Option B) Compile-Time Error - This option is incorrect. The code does not contain any syntax errors, so it will compile successfully.

Option C) 123.00 - This option is incorrect. Although the number 123 is a whole number, the format specifier "%f" specifies that the number should be printed with six digits after the decimal point. Since there are no digits after the decimal point in the number 123., it will be printed as 123.000000.

Option D) 123.000000 - This option is correct. The code includes a format specifier "%f" in the printf function, which specifies that the number should be printed with six digits after the decimal point. Since there are no digits after the decimal point in the number 123., it will be printed as 123.000000.

The correct answer is D) 123.000000.