java tutorial - Java Math.random() Method - java programming - learn java - java basics - java for beginners
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Description
The method Math.random () - in Java is used to generate a random number in the range from 0.0 to 1.0. Different ranges can be achieved using arithmetic.
Syntax
static double random()click below button to copy the code. By - java tutorial - team
Options
Detailed information about the parameters:
- The default method does not take a parameter.
Return value
- In Java Math.random () Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0 (0.0 <= Math.random () <1.0).
Example 1
public class Test {
public static void main(String args[]) {
System.out.println( Math.random() );
System.out.println( Math.random() );
}
}click below button to copy the code. By - java tutorial - team
Output
0.16763945061451657
0.400551253762343Note:The result will change every time you call the Math.random () method.
Example2: a random number between 0 and 10
package com.javatutorialhq.java.examples;
/*
* This example source code demonstrates the use of
* Random() method of Math class
* Generating random numbers from 1 to 10
*/
public class MathRandomExample {
public static void main(String[] args) {
// define the range
int max = 10;
int min = 1;
int range = max - min + 1;
// generate random number from 1 to 10
int rand = (int) (Math.random()* range) + min;
System.out.println(rand);
} java-random-advance
}click below button to copy the code. By - java tutorial - team
Output
Learn java - java tutorial - java random advance - java examples - java programs