How to add negative random numbers in java

To generate negative random numbers in Java, you can use the nextInt method of the Random class, which returns a random integer value within a specified range.

Here's an example of how you could use the nextInt method to generate negative random numbers in Java:

import java.util.Random;

public class Main {
  public static void main(String[] args) {
    Random random = new Random();
    int min = -10;
    int max = -5;
    int num = random.nextInt(max - min + 1) + min;
    System.out.println(num);
  }
}

In this example, the Random object named random is initialized using the default constructor. The min and max variables define the range of the negative random numbers that will be generated, in this case from -10 to -5. The nextInt method is then used to generate a random integer within this range, by specifying the range as the argument and adding the min value to the result. Finally, the generated number is printed using the println method.

The output of this example would be a random integer between -10 and -5, for example:

-9

Keep in mind that the nextInt method generates a new random number each time it is called, so you can use it in a loop to generate multiple random numbers. You can also specify a different range or use a different method of the Random class, such as nextDouble, to generate random numbers of a different type or with a different range.

You can also use the SecureRandom class, which is a subclass of Random, to generate more secure random numbers using a variety of secure random number generators. For example, you can use the following code to generate negative random integers using the SecureRandom class:

import java.security.SecureRandom;

public class Main {
  public static void main(String[] args) {
    SecureRandom random = new SecureRandom();
    int min = -10;
    int max = -5;
    int num = random.nextInt(max - min + 1) + min;
    System.out.println(num);
  }
}

This code is similar to the previous example, but it uses the SecureRandom class instead of the Random class to generate the random number. The SecureRandom class uses a secure random number generator, which is considered more suitable for generating random numbers that are used for security purposes, such as passwords or encryption keys.