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CuriousTab

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  • Question
  • What will be the output of the program?
    #include<stdio.h>
    #include<string.h>
    
    int main()
    {
        printf("%d\n", strlen("123456"));
        return 0;
    }
    


  • Options
  • A. 6
  • B. 12
  • C. 7
  • D. 2

  • Correct Answer


  • Explanation
    The function strlen returns the number of characters in the given string.

    Therefore, strlen("123456") returns 6.

    Hence the output of the program is "6".


    Strings problems


    Search Results


    • 1. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          int i;
          char a[] = "\0";
          if(printf("%s", a))
              printf("The string is empty\n");
          else
              printf("The string is not empty\n");
          return 0;
      }
      

    • Options
    • A. The string is empty
    • B. The string is not empty
    • C. No output
    • D. 0
    • Discuss
    • 2. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          char str[] = "India\0CURIOUSTAB\0";
          printf("%d\n", sizeof(str));
          return 0;
      }
      

    • Options
    • A. 10
    • B. 6
    • C. 5
    • D. 11
    • Discuss
    • 3. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          char t;
          char *p1 = "India", *p2;
          p2=p1;
          p1 = "CURIOUSTAB";
          printf("%s %s\n", p1, p2);
          return 0;
      }
      

    • Options
    • A. India CURIOUSTAB
    • B. CURIOUSTAB India
    • C. India India
    • D. CURIOUSTAB CURIOUSTAB
    • Discuss
    • 4. If char=1, int=4, and float=4 bytes size, What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          char ch = 'A';
          printf("%d, %d, %d", sizeof(ch), sizeof('A'), sizeof(3.14f));
          return 0;
      }
      

    • Options
    • A. 1, 2, 4
    • B. 1, 4, 4
    • C. 2, 2, 4
    • D. 2, 4, 8
    • Discuss
    • 5. What will be the output of the program?
      #include<stdio.h>
      #include<string.h>
      
      int main()
      {
          static char str1[] = "dills";
          static char str2[20];
          static char str3[] = "Daffo";
          int i;
          i = strcmp(strcat(str3, strcpy(str2, str1)), "Daffodills");
          printf("%d\n", i);
          return 0;
      }
      

    • Options
    • A. 0
    • B. 1
    • C. 2
    • D. 4
    • Discuss
    • 6. What will be the output of the program in Turbo C?
      #include<stdio.h>
      
      int main()
      {
          char str[10] = "India";
          str[6] = "CURIOUSTAB";
          printf("%s\n", str);
          return 0;
      }
      

    • Options
    • A. India CURIOUSTAB
    • B. CURIOUSTAB
    • C. India
    • D. Error
    • Discuss
    • 7. What will be the output of the program?
      #include<stdio.h>
      void swap(char *, char *);
      
      int main()
      {
          char *pstr[2] = {"Hello", "CuriousTab"};
          swap(pstr[0], pstr[1]);
          printf("%s\n%s", pstr[0], pstr[1]);
          return 0;
      }
      void swap(char *t1, char *t2)
      {
          char *t;
          t=t1;
          t1=t2;
          t2=t;
      }
      

    • Options
    • A. CuriousTab
      Hello
    • B. Address of "Hello" and "CuriousTab"
    • C. Hello
      CuriousTab
    • D. Iello
      HndiaCURIOUSTAB
    • Discuss
    • 8. What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          static char mess[6][30] = {"Don't walk in front of me...", 
                                     "I may not follow;", 
                                     "Don't walk behind me...", 
                                     "Just walk beside me...", 
                                     "And be my friend." };
      
          printf("%c, %c\n", *(mess[2]+9), *(*(mess+2)+9));
          return 0;
      }
      

    • Options
    • A. t, t
    • B. k, k
    • C. n, k
    • D. m, f
    • Discuss
    • 9. What will be the output of the program in 16-bit platform (Turbo C under DOS)?
      #include<stdio.h>
      
      int main()
      {
          printf("%d, %d, %d", sizeof(3.0f), sizeof('3'), sizeof(3.0));
          return 0;
      }
      

    • Options
    • A. 8, 1, 4
    • B. 4, 2, 8
    • C. 4, 2, 4
    • D. 10, 3, 4
    • Discuss
    • 10. If the size of pointer is 32 bits What will be the output of the program?
      #include<stdio.h>
      
      int main()
      {
          char a[] = "Visual C++";
          char *b = "Visual C++";
          printf("%d, %d\n", sizeof(a), sizeof(b));
          printf("%d, %d", sizeof(*a), sizeof(*b));
          return 0;
      }
      

    • Options
    • A. 10, 2
      2, 2
    • B. 10, 4
      1, 2
    • C. 11, 4
      1, 1
    • D. 12, 2
      2, 2
    • Discuss


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