Getting random numbers in Java

In Java, you can generate random numbers using the Random class, Math.random(), or the ThreadLocalRandom class.

1. Random Class:
   java

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   Random random = new Random();
int randomInt = random.nextInt(100); // Random integer between 0 and 99

2. Math.random():
   java

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   double randomDouble = Math.random(); // Random double between 0.0 and 1.0
int randomInt = (int) (Math.random() * 100); // Random integer 0-99

3. ThreadLocalRandom (Recommended for multi-threaded environments):
   java

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   int randomInt = ThreadLocalRandom.current().nextInt(100);


These methods allow flexibility in generating random numbers.