math.random java
math.random() java
The Math.random()Java method generates a pseudo random number between 0.0 and 1.0.It is the most common method used to generate a random number in Java.
math random java
The Java
Math.random()
method is used to generate a random number, which is a number created with randomness.It returns a random
double, which is the data type used to store floating-point values.
import java.lang.Math; class Main { public static void main(String[] args) { double rand = Math.random(); System.out.println("Random number: " + rand); } }
Random number: 0.7226254724466756
As you can see , the above has returned a random number between 0 and 1.
In order to produce a whole number,we can multiply our random number by another number and round it to the nearest whole number.
java math.random
import java.lang.Math; class Main { public static void main(String[] args) { int rand = (int)(Math.random() * 11); System.out.println("Random number: " + rand); } }
Random number: 7
java math random
In Some Case we wanted to generate a number between 1 and 500.Then need to multiply with the 500.
java math.random example
import java.lang.Math; class Main { public static void main(String[] args) { int rand = (int)(Math.random() * 500); System.out.println("Random number: " + rand); } }
Random number: 297
Math.random() method is used to generate random numbers.
Math.random()
generates a number between 0 and 1.