LAB-Array-String

How do you initialize an array in C?

• int arr[3] = (1,2,3);

• int arr(3) = {1,2,3};

• int arr[3] = {1,2,3}

• int arr(3) = (1,2,3)

What is the output of C Program.?

int main() {

int a[] = {1,2,3,4};

int b[4] = {5,6,7,8};

printf("%d,%d", a[0], b[0]);

}

• 1,5

• 2,6

• 0,0

• Error

What is the output of C program.?

int main()

{

float marks[3] = {90.5, 92.5, 96.5};

int a=0;

while(a<3)

{

printf("%.2f,", marks[a]); a++;

}

}

• 90.5 92.5 96.5

• 90.50 92.50 96.50

• 0.00 0.00 0.00

• Compiler error

What is the output of C Program.?

int main() {

int a[3] = {10,12,14};

a[1]=20;

int i=0;

while(i<3)

{ printf("%d ", a[i]);

i++; }

}

• 20 12 14

• 10 20 14

• 10 12 20

• Error

8.Which of the following correctly accesses the seventh element stored in arr, an array with 100 elements?

• arr[6]

• arr[7]

• arr{6}

• arr{7}

What is the minimum and maximum Indexes of this below array.?

int main()

{

int ary[9];

return 0;

}

• -1, 8

• 0, 8

• 1,9

• None of the above

How can I store the value 10 into the second row, first column of my array that I have declared as int numbers[10][10]?

• int numbers[1][2] = 10;

• numbers[1][2] = 10;

• numbers[2][3] = 10;

• numbers[1][0] = 10

Consider a two dimensional array A[20][10]. Assume 4 words per memory cell, the base address of array A is 100, elements are stored in row-major order and first element is A[0][0]. What is the address of A[11][5] ?

• 575

• 460

• 570

• 560

What is a String in C Language.?

• String is a new Data Type in C

• String is an array of Characters with null character as the last element of array.

• String is an array of Characters with null character as the first element of array

• String is an array of Integers with 0 as the last element of array

What is the Format specifier used to print a String or Character array in C Printf or Scanf function.?

• %d

• %f

• %s

• %c