Question

Write Java statements to instantiate a random number generator object named randomGenerator and to generate a random integer between -5 and 20 inclusive.

Answer 1

To create a random number generator in Java, use the Random class. Instantiate it and call the nextInt(26) method, subtracting 5 to get a number between -5 and 20 inclusive.

Step-by-step explanation:

To instantiate a random number generator object named randomGenerator and to generate a random integer between -5 and 20 inclusive, you will need to use the Random class in Java. Here's how you can accomplish this:

Random randomGenerator = new Random();
int randomInt = randomGenerator.nextInt(26) - 5; // Generates a random integer between -5 and 20

The nextInt(int bound) method of the Random class generates a random integer from 0 (inclusive) to the specified value (exclusive). Since you want numbers between -5 and 20 inclusive, you would want a range of 26 different possibilities (20 - (-5) + 1 = 26). Therefore, you pass 26 to the nextInt method and subtract 5 to adjust the range to the desired one.