Random number genrator program in Java

public class Randomnumbergenrator {

  static final int first = 830844;
  static final int second = 39048;
  static final int third = 3840938;

  long randomnumber = 1;

  public Randomnumbergenrator(long randomnumber) {
      this.randomnumber = randomnumber;
      }

      public float randomFloat() {
          randomnumber = (randomnumber * second + third) % first;
          return (float)randomnumber/(float)first;
          }

          public int randomInt(int max) {
              return Math.round(max * randomFloat());
          }
}