Java Random Number Generation

There are several methods in Java for generating random numbers, with common ones including:

1. By using the random() method of the Math class, you can obtain a random floating-point number greater than or equal to 0.0 and less than 1.0. To get a random number within a specific range, you can multiply it by the range value and convert it to an integer.

double random = Math.random();
int randomNumber = (int)(random * range) + min;

1. Using the Random class: This class offers more flexible methods for generating random numbers, such as integers, long integers, boolean values, and setting seeds.

Random random = new Random();
int randomNumber = random.nextInt(range) + min;

1. Utilize the ThreadLocalRandom class: introduced in Java 7, this class is a thread-safe random number generator that performs better than the Random class. You can use the nextInt() method to obtain a random integer within a specified range.

int randomNumber = ThreadLocalRandom.current().nextInt(min, max);

The above are some commonly used methods for generating random numbers, the choice of which method to use depends on the specific needs and performance requirements.