Hands-on brain after-school experiment 2

Consider the following code, you find what is special about it?

 

 Special features: two square calculation method name and parameter types are not the same return type, argument types due to different methods, the method of forming Overloaded.

 

Pure random number generator

= 231-1 = Int.MaxValue the Modulus
Multiplier = 16807 = 75
C = 0
when the number of displayed through 231-2, it may be repeated.

Write a method, using the above algorithm to generate a random integer to specify the number (such as 1000) of.

package 随机数;
import java.util.Random;
public class kk
{
   public static void main(String[] args)
   {
       Random ran = new Random( System.currentTimeMillis() );
       int x;
       x=ran.nextInt(1000);
       for(int i=1;i<=1000;i++)
       {
                  System.out.println(x+"\t");
                x=(5*x+4)%(99999999);
       }
   }
}