Ackermann Function Written in Java

Sat Apr 18 2015

class Ackermann_function
{
    public static void main(String[] args)
    {
        //prints intro

        System.out.println("This program will solve for all values in ackermann
function using recursion.1");

        System.out.println("**************************n")
        //calls for all values of ackerman using for loop
        for(int i = 0; i < 6; i ++)
        {
            for(int j = 0; j < 10; j ++)
            {
                System.out.println("Ackerman (" + i + "," + j + ") is: " +
ack(i,j));
            }
        }

        //test sinlge
        //System.out.println(ack(3,1));
    }

    public static int ack(int m, int n)
    {
        if(m == 0)
        {
            return(n + 1);
        }
        else if(m > 0 && n == 0)
        {
            return(ack(m-1,1));
        }
        else if(m >0 && n > 0);
        {
            return(ack(m-1, ack(m,n-1)));
        }
    }
}

The Ackermann function is a classic example of a function that is not primitive recursive – you cannot solve it using loops like Fibonacci. In other words, you have to use recursion to solve for values of the Ackermann function.

For more information on the Ackermann function click here.



Batch Minecraft Launcher with Auto Restart

Sat Apr 18 2015


@echo off

color a

title server Name

 

:startServer

echo starting server

echo (%time%)

java -Xmx1024M -jar caftbukkit.jar -o true

 

echo (%time%) WARNING: Minecraft server closed or crashed, restarting

ping 127.0.0.1 -n 5

goto startServer

This batch script great for Minecraft servers which frequently crash – for whatever reason. If you want to learn more about how this script works I would recommend that you look up a batch tutorial online. This script is just a big loop which restarts whenever the server crashes. If you like to use this, just copy and paste it into a batch file (ends with .bat) and make sure that it is in the same directory as your Minecraft server. Also, the “craftbukkit.jar” should be the name of the jar file that you use to run your server.

Happy mining.



Time Lapse Programming Zombie game

Mon Jan 05 2015

This is a simple zombie shooter game that I made in visual basics. The graphics are very basic due to copyrights that I wanted to avoid – and lack of artistic abilities. However, this game is meant to be a demo so that you can learn something from what I did. If you enjoyed this feel free to download the source code (linked below).



Time Lapse Programming Pong

Sat Dec 27 2014

Downloads:

VB programming picture
VB programming picture