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Which of the following statements are correct about the following array? char array[255]; The array may be initialized at the time of declaration. The expression tab[255] designates the last element in the array. The expression tab[2] designates the second element in the array. The array can store 255 elements.

Question

Which of the following statements are correct about the following array?

char array[255];

The array may be initialized at the time of declaration.

The expression tab[255] designates the last element in the array.

The expression tab[2] designates the second element in the array.

The array can store 255 elements.

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Solution

  1. The array may be initialized at the time of declaration. - This statement is correct. In C, you can initialize an array at the time of declaration.

  2. The expression tab[255] designates the last element in the array. - This statement is incorrect. In C, arrays are zero-indexed, meaning the first element is at position 0. Therefore, for an array of size 255, the last element is at position 254, not 255.

  3. The expression tab[2] designates the second element in the array. - This statement is incorrect. As mentioned before, arrays in C are zero-indexed. So, tab[2] would actually designate the third element in the array, not the second.

  4. The array can store 255 elements. - This statement is correct. The number in the square brackets when declaring an array in C specifies the size of the array, or in other words, how many elements it can hold. So, an array declared as char array[255]; can indeed store 255 elements.

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