Take the random number of the specified range

Take the random number of the specified range

This is a very useful function, written here just to strengthen the memory, just remember a formula is OK.
such as Min, Max, Max, the random number R range to be taken is Min≤r≤max, the formula is as follows:

(int) ((max-min + 1) * Math.random ()) + min

You can see that there is nothing to say.

The implementation code is as follows:

/*
* Date Created 2004-12-11
*
*/

/**
* Take the random number of the specified range
*
* @author Wubai
*
*/
public class Getrandom {

   /**
     * Take a random number of the specified range
     *
      * @param min start range
     * @param max end range
     * @return Random number
     */
    public int getrandom (int min, int max) {
        return (int) ((max-min + 1) * Math.random ()) + min;
       
   }
   
    //test with
    public static void Main (string[] args) {
        
        getrandom test = new Getrandom ();
        int random = Test.getrandom (10, 99);
       
        System.out.println ("Random is" + random);
   }
}