With this example we are going to demonstrate how to generate random numbers using random() method of Math Class. The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions. In short, to generate random numbers you should:
- Call
random()API method of Math. This method returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0. Returned values are chosen pseudorandomly with (approximately) uniform distribution from that range.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
public class GenerateRandomNumbersWithMathRandom {
public static void main(String[] args) {
System.out.println("Random numbers between 0.0 and 1.0:");
for (int i=0; i < 3; i++) {
System.out.println(Math.random() + " ");
}
System.out.println();
System.out.println("Random numbers between 1 and 100:");
for(int i=0; i < 3; i++) {
System.out.println(Math.random()*100);
}
}
}
Output:
Random numbers between 0.0 and 1.0:
0.25716239766274174
0.42470507981212935
0.26393155239779464
Random numbers between 0 and 100:
59.732921775525384
67.23674067993215
91.81473804900442
This was an example of how to generate random numbers using random() method of Math Class in Java.
