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C Programming :: Input / Output

Input / Output - General Questions
Input / Output - Point Out Errors
Input / Output - Yes / No Questions
Input / Output - Find Output of Program
Input / Output - True / False Questions
Input / Output - Point Out Correct Statements

  1. Point out the error in the program?

      #include
  int main()
  {    
       char ch;    
       int i;   
       scanf("%c", &i);     
       scanf("%d", &ch);     
       printf("%c %d", ch, i);     
       return 0;
 }

     

    2. A.

    Error: suspicious char to in conversion in scanf()
    B.

    Error: we may not get input for second scanf() statement
    C.

    No error
    D.

    None of above

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  2. Point out the error in the program?

     #include 
 int main()
 {    
      FILE *fp;  
      fp=fopen("trial", "r");     
      fseek(fp, "20", SEEK_SET);     
      fclose(fp);  
      return 0; 
}

    3. A.

    Error: unrecognised Keyword SEEK_SET
    B.

    Error: fseek() long offset value
    C.

    No error
    D.

    None of above

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  3. Point out the error in the program?

     #include 
 /* Assume there is a file called 'file.c' in c:\tc directory. */
 int main()
 {    
       FILE *fp;      
       fp=fopen("c:\tc\file.c", "r");         
       if(!fp)   
          printf("Unable to open file.");          
       fclose(fp);   
       return 0; 
}

    4. A.

    No error, No output.
    B.

    Program crashes at run time.
    C.

    Output: Unable to open file.
    D.

    None of above

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  4. Point out the error/warning in the program?

     #include

  int main()
  {
     unsigned char ch;   
     FILE *fp;  
     fp=fopen("trial", "r");     
     while((ch = getc(fp))!=EOF)         
         printf("%c", ch);     
     fclose(fp); 
     return 0; 
 }

    5. A.

    Error: in unsigned char declaration
    B.

    Error: while statement
    C.

    No error
    D.

    It prints all characters in file "trial"

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