In this article, you will learn how to generate a random number ranging from 1 to 10 in JAVA by using the JAVA Math class which consists of methods that perform various tasks on numbers.

# Java Math – Math.random()

Java provides three different techniques to generate a random number between 1 to 10 and they are given as,

- java.util.Random (Importing Packages)
- By using the Math.random method
- By using ThreadLocalRandom Class

The

**first method**indicates the usage of the JAVA packages which contains many utility classes and one is the random-number generator, where nextInt, nextDouble, etc are involved.Coming to the

**Third Method**of technique, uses a java.util.concurrent.ThreadLocalRandom class which generates the integers, doubles, booleans, etc.But in this article, I am explaining to you the

**second method**of generating random numbers i.e,**JAVA Math**, where the Math class is used to find the maximum or minimum values between the given numbers. It also finds the square root and the absolute value of a number. Thus,**Math.random()**is used to generate a number randomly in a given range or others.This method is far most useful and less burdened because it is simple. Study the approach given below to know more about the random method used here.

# Approach

- To generate a random number between 1 to 10, the
**Math.random()**is used and it returns a value between 0.0(inclusive) and 1.0(exclusive). Thus, it returns a double value which is not precise. - By using
**int randomNum = (int)(Math.random() * 11)**we can be more precise over the generating random number. - We can import a built-in util package, as this package already contains many classes we may or may not use the Random class in the package. This can be simply represented by an asterisk (*).
- Hence this method returns the number of the specified data type like the integer, double, even boolean values.
- From the program, one can observe that the number 11 in the
**Math.random() * 11**indicates that the method generates numbers randomly in the range of 0 to 10. - If the number is 10 and you want to generate a number between 1 to 10 randomly, then the output ranges only between 0 to 9 because 10 is exclusive.

# Program

```
import java.util.Random; // import java.util.*;
public class generateRandomNumber
{
public static void main(String[] args)
{
int randomNumber = (int)(Math.random() * 11); // Output Ranges from 0 to 10
System.out.println('The Random Number is ' +randomNumber);
}
}
```

## Output

`The Random Number is 7`