Question

Assume that rand is an object of the Random class.

Which of the following statements generates a random number in the [1..1000] range?
(A) int number = rand.nextInt(1000) + 1;
(B) int number = rand.nextInt(1000);
(C) int number = rand.nextInt(1001);
(D) int number = rand.nextInt(1) + 1000;

Answer 1

The correct statement to generate a random number in the range of [1..1000] is Option A: int number = rand.nextInt(1000) + 1; as it uses the nextInt method of the Random class which provides a number from 0 to 999, and with the addition of 1, it adjusts the range to 1 to 1000 inclusive.

Step-by-step explanation:

The student's question is regarding the generation of a random number in the given range of [1..1000] using an object of the Random class in Java. To generate a random number between 1 and 1000 inclusive using the Random class in Java, one would use the following code statement:

Option A: int number = rand.nextInt(1000) + 1;

This option correctly generates a random integer between 1 (inclusive) and 1001 (exclusive), which effectively corresponds to the range of [1..1000].

Step-by-step explanation:

• The nextInt(int bound) method generates a random integer from 0 (inclusive) to the specified bound (exclusive).
• nextInt(1000) generates a number between 0 and 999.
• By adding 1 to the result, we adjust the range to 1 and 1000 inclusive.

Therefore, the correct answer is Option A.