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Getting random numbers in Java

Jonny
By Jonny
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To generate random numbers in Java, you can use the Random class or Math.random() method.

1. Using Random class:

java
import java.util.Random;

Random rand = new Random();
int randomInt = rand.nextInt(100); // Random integer between 0 and 99
double randomDouble = rand.nextDouble(); // Random double between 0.0 and 1.0

2. Using Math.random():

java
double random = Math.random(); // Random double between 0.0 and 1.0

3. Generating a random integer within a range:

java
int randomInRange = rand.nextInt(50) + 1; // Random integer between 1 and 50
  • Random.nextInt(n) generates an integer between 0 (inclusive) and n (exclusive).
  • Math.random() generates a double between 0.0 and 1.0.

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