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Home ‣ C Programming ‣ Command Line Arguments See What Others Are Saying!
  • Question

  • What will be the output of the program (sample.c) given below if it is executed from the command line (Turbo C in DOS)?
    cmd> sample 1 2 3 
    /* sample.c */
#include<stdio.h>

int main(int argc, char *argv[])
{
    int j;
    j = argv[1] + argv[2] + argv[3];
    printf("%d", j);
    return 0;
}


  • Options
  • A. 6
  • B. sample 6
  • C. Error
  • D. Garbage value

  • Correct Answer
  • Error 

    Explanation
    Here argv[1], argv[2] and argv[3] are string type. We have to convert the string to integer type before perform arithmetic operation.

    Example: j = atoi(argv[1]) + atoi(argv[2]) + atoi(argv[3]);

    More questions

    • 1. Bitwise can be used to reverse a sign of a number.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 2. Is it necessary that in a function which accepts variable argument list there should be at least be one fixed argument?

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 3. Bitwise can be used to generate a random number.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 4. A function that receives variable number of arguments should use va_arg() to extract the last argument from the variable argument list.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Bitwise & can be used to check if more than one bit in a number is on.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The preprocessor can trap simple errors like missing declarations, nested comments or mismatch of braces.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. It is necessary that a header files should have a .h extension?

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. Bitwise | can be used to set multiple bits in number.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 9. Bitwise & can be used to check if a bit in number is set or not.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A pointer union CANNOT be created

    • Options
    • A. Yes
    • B. No
      • Discuss

    Comments

    Avatar
    Rishi
    What will be the output of the program () given below if it is executed from the command line?569 #include <> int main(int sizeofargv,char*argv[]) { while(sizeofargv) printf("%s",argv[--sizeofargv]); return 0; } sample friday tuesday sunday sample friday tuesday sunday tuesday friday sample sunday tuesday friday
    Avatar
    Dismgrirm
    Investigations into the Mechanisms of Apoptosis Induced by Gossypolmitotane decreases levels of vandetanib by affecting hepatic intestinal enzyme CYP3A4 metabolism
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