System.out.println('Z' + 32); will display:

1. z
2. Z
3. 122
4. 154

double x[] = {2.5, 4.5, 5.5, 6.4}; occupies …………… bytes.

1. 16
2. 4
3. 8
4. 32

Consider the two-dimensional array P[2][3], of peripherals (input/output devices) given below, state the index of the device Barcode Scanner.

1. P[1][1]
2. P[0][1]
3. P[1][2]
4. P[0][0]

Which of the following is user-defined data type?

1. only 1
2. 1 and 3
3. only 2
4. only 4