Generate a random double in a range in java

Generate a random double in a range in java

To generate a random double value within a specified range in Java, you can use the java.util.Random class along with the Math.random() method. Here's how you can generate a random double within a given range:

import java.util.Random; public class RandomDoubleInRange { public static void main(String[] args) { double minValue = 1.0; double maxValue = 10.0; // Generate a random double between minValue (inclusive) and maxValue (exclusive) double randomValue = minValue + (maxValue - minValue) * Math.random(); System.out.println("Random double: " + randomValue); } }

In this example:

  1. minValue and maxValue specify the range within which you want to generate a random double.

  2. We use Math.random() to generate a random double between 0.0 (inclusive) and 1.0 (exclusive).

  3. By multiplying the random value by (maxValue - minValue), we scale it to the desired range.

  4. Finally, we add minValue to ensure that the generated random double falls within the specified range [minValue, maxValue).

Running the code will produce a random double value within the specified range. Adjust minValue and maxValue as needed to change the range of random values you want to generate.

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