How to Generate Random Numbers Between 1 and 50 in Java?

Generating Random Numbers in Java with Math.random()

To obtain random values from 1 to 50 using Math.random() in Java, you have two options:

Option 1: Using the java.util.Random Class

This class provides a more robust way to generate random numbers:

<code class="java">import java.util.Random;

Random rand = new Random();

// Obtain a number between [0 - 49].
int n = rand.nextInt(50);

// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;</code>

Option 2: Using Math.random() Directly

This method can also be used to generate random numbers within the desired range:

<code class="java">double random = Math.random() * 49 + 1;</code>

Here, Math.random() generates a random number between 0 and 1. By multiplying it by 49, you scale it to the range [0 - 49]. Adding 1 then shifts the range to [1 - 50].

You can also cast the result to an integer for convenience:

<code class="java">int random = (int)(Math.random() * 50 + 1);</code>

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