C Data Types Test – 1

1. What will be the output of the following C code?

    #include <stdio.h>
    int main()
    {
        int a[5] = {1, 2, 3, 4, 5};
        int i;
        for (i = 0; i < 5; i++)
            if ((char)a[i] == '5')
                printf("%d\n", a[i]);
            else
                printf("FAIL\n");
    }

2. Which of the following is a User-defined data type?

3. The format identifier '%i' is also used for _____ data type.

4. What will be the output of the following C code?

    #include  <stdio.h>
    int main()
    {
        char c;
        int i = 0;
        FILE *file;
        file = fopen("test.txt", "w+");
        fprintf(file, "%c", 'a');
        fprintf(file, "%c", -1);
        fprintf(file, "%c", 'b');
        fclose(file);
        file = fopen("test.txt", "r");
        while ((c = fgetc(file)) !=  -1)
            printf("%c", c);
        return 0;
    }

5. What is the size of an int data type?

6. What is short int in C programming?

7. Which data type is most suitable for storing a number 65000 in a 32-bit system?

8. What will be the output of the following C code?

    #include  <stdio.h>
    int main()
    {
       signed char chr;
       chr = 128;
       printf("%d\n", chr);
       return 0;
    }