How to run everything in a method in one class?

Question

So Here's my question... I have a java program for checkers, I want to initialize the checkers in a different class, as a method (I Think), and then create all of them. Here's my code: http://pastebin.com/ansERKjv So how do I call the method DoCreate() in my main class? Also if I want to do what I've stated above, but put Create in a different file, and then call the method public void DoCreate() how would I do that? Would I have to import class Checker. ThankS

import java.util.logging.*;
//Jake Sylvestre
public class Checkers 
{
public static void main (String[] args)
{
    //Creates all the checkers


}
}

class Checker
{
    int x;
    int y;
    int id;
    boolean white;
    boolean king;
}

class Create
{
        public void DoCreate()//Creates all the pieces and gives them starting values
        {

            //YES writing an algorithm to skip every other space would be more effecient for me, but would slow down code
            //intalizing checker 
            //checker  create code starts
            //WHITE BELOW
            Checker checker1 = new Checker();//Creates the checker object
            checker1.x=1;//starting x value
            checker1.y=1;//starting y value
            checker1.id=1;//Checker Id
            checker1.king=false;//Is it a king
            //checker  create code end



            //intalizing checker 2
            //checker 2 create code starts
            Checker checker2 = new Checker();//Creates the checker object
            checker2.x=2;//starting x value
            checker2.y=1;//starting y value
            checker2.id=2;//Checker Id
            checker2.king=false;//Is it a king
            //checker 2 create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker3 = new Checker();//Creates the checker object
            checker3.x=5;//starting x value
            checker3.y=1;//starting y value
            checker3.id=3;//Checker Id
            checker3.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker4 = new Checker();//Creates the checker object
            checker4.x=7;//starting x value
            checker4.y=1;//starting y value
            checker4.id=4;//Checker Id
            checker4.king=false;//Is it a king
            //checker  create code end



            //intalizing checker 
            //checker  create code starts
            Checker checker5 = new Checker();//Creates the checker object
            checker5.x=9;//starting x value
            checker5.y=1;//starting y value
            checker5.id=5;//Checker Id
            checker1.king=false;//Is it a king
            //checker  create code end



            //intalizing checker 
            //checker  create code starts
            Checker checker6 = new Checker();//Creates the checker object
            checker6.x=2;//starting x value
            checker6.y=2;//starting y value
            checker6.id=6;//Checker Id
            checker6.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker7 = new Checker();//Creates the checker object
            checker7.x=4;//starting x value
            checker7.y=2;//starting y value
            checker7.id=7;//Checker Id
            checker7.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker8 = new Checker();//Creates the checker object
            checker8.x=6;//starting x value
            checker8.y=2;//starting y value
            checker8.id=8;//Checker Id
            checker8.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker9 = new Checker();//Creates the checker object
            checker9.x=8;//starting x value
            checker9.y=2;//starting y value
            checker1.id=9;//Checker Id
            checker1.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker10 = new Checker();//Creates the checker object
            checker10.x=10;//starting x value
            checker10.y=2;//starting y value
            checker10.id=10;//Checker Id
            checker10.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker11 = new Checker();//Creates the checker object
            checker11.x=1;//starting x value
            checker1.y=3;//starting y value
            checker1.id=11;//Checker Id
            checker11.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker12 = new Checker();//Creates the checker object
            checker12.x=3;//starting x value
            checker12.y=3;//starting y value
            checker12.id=12;//Checker Id
            checker12.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker13 = new Checker();//Creates the checker object
            checker13.x=5;//starting x value
            checker13.y=3;//starting y value
            checker13.id=13;//Checker Id
            checker13.white=true;//Is it white?
            checker13.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker14 = new Checker();//Creates the checker object
            checker14.x=7;//starting x value
            checker14.y=3;//starting y value
            checker14.id=1;//Checker Id
            checker14.white=true;//Is it white?
            checker14.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker15 = new Checker();//Creates the checker object
            checker15.x=9;//starting x value
            checker15.y=3;//starting y value
            checker15.id=15;//Checker Id
            checker15.white=true;//Is it white?
            checker15.king=false;//Is it a king
            //checker  create code end

            //intalizing checker 
            //checker  create code starts
            Checker checker16 = new Checker();//Creates the checker object
            checker16.x=2;//starting x value
            checker16.y=4;//starting y value
            checker16.id=16;//Checker Id
            checker16.white=true;//Is it white?
            checker16.king=false;//Is it a king
            //checker  create code end

            //intalizing checker 
            //checker  create code starts
            Checker checker17 = new Checker();//Creates the checker object
            checker17.x=4;//starting x value
            checker17.y=4;//starting y value
            checker17.id=17;//Checker Id
            checker17.white=true;//Is it white?
            checker17.king=false;//Is it a king
            //checker  create code end

            //intalizing checker 
            //checker  create code starts
            Checker checker18 = new Checker();//Creates the checker object
            checker18.x=6;//starting x value
            checker18.y=4;//starting y value
            checker18.id=18;//Checker Id
            checker18.white=true;//Is it white?
            checker18.king=false;//Is it a king
            //checker  create code end

            //intalizing checker 
            //checker  create code starts
            Checker checker19 = new Checker();//Creates the checker object
            checker19.x=8;//starting x value
            checker19.y=4;//starting y value
            checker19.id=19;//Checker Id
            checker19.white=true;//Is it white?
            checker19.king=false;//Is it a king
            //checker  create code end

            //intalizing checker 
            //checker  create code starts
            Checker checker20 = new Checker();//Creates the checker object
            checker20.x=10;//starting x value
            checker20.y=4;//starting y value
            checker20.id=20;//Checker Id
            checker20.white=true;//Is it white?
            checker20.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker21 = new Checker();//Creates the checker object
            checker21.x=2;//starting x value
            checker21.y=10;//starting y value
            checker21.id=21;//Checker Id
            checker21.white=false;//Is it white?
            checker21.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker22 = new Checker();//Creates the checker object
            checker22.x=4;//starting x value
            checker22.y=10;//starting y value
            checker22.id=22;//Checker Id
            checker22.white=false;//Is it white?
            checker22.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker23 = new Checker();//Creates the checker object
            checker23.x=6;//starting x value
            checker23.y=10;//starting y value
            checker23.id=23;//Checker Id
            checker23.white=false;//Is it white?
            checker23.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker24 = new Checker();//Creates the checker object
            checker24.x=8;//starting x value
            checker24.y=10;//starting y value
            checker24.id=24;//Checker Id
            checker24.white=false;//Is it white?
            checker24.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker25 = new Checker();//Creates the checker object
            checker25.x=10;//starting x value
            checker25.y=10;//starting y value
            checker25.id=25;//Checker Id
            checker25.white=false;//Is it white?
            checker25.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker26 = new Checker();//Creates the checker object
            checker26.x=1;//starting x value
            checker26.y=9;//starting y value
            checker26.id=26;//Checker Id
            checker26.white=false;//Is it white?
            checker26.king=false;//Is it a king
            //checker  create code end



            //intalizing checker 
            //checker  create code starts
            Checker checker27 = new Checker();//Creates the checker object
            checker27.x=3;//starting x value
            checker27.y=9;//starting y value
            checker27.id=27;//Checker Id
            checker27.white=false;//Is it white?
            checker27.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker28 = new Checker();//Creates the checker object
            checker28.x=5;//starting x value
            checker28.y=9;//starting y value
            checker28.id=27;//Checker Id
            checker28.white=false;//Is it white?
            checker28.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker29 = new Checker();//Creates the checker object
            checker29.x=7;//starting x value
            checker29.y=9;//starting y value
            checker29.id=28;//Checker Id
            checker29.white=false;//Is it white?
            checker29.king=false;//Is it a king
            //checker  create code end

            //intalizing checker 
            //checker  create code starts
            Checker checker30 = new Checker();//Creates the checker object
            checker30.x=9;//starting x value
            checker30.y=9;//starting y value
            checker30.id=28;//Checker Id
            checker30.white=false;//Is it white?
            checker30.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker31 = new Checker();//Creates the checker object
            checker31.x=2;//starting x value
            checker31.y=8;//starting y value
            checker31.id=31;//Checker Id
            checker31.white=false;//Is it white?
            checker31.king=false;//Is it a king
            //checker  create code end




            //intalizing checker 
            //checker  create code starts
            Checker checker32 = new Checker();//Creates the checker object
            checker32.x=4;//starting x value
            checker32.y=8;//starting y value
            checker32.id=32;//Checker Id
            checker32.white=false;//Is it white?
            checker32.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker33 = new Checker();//Creates the checker object
            checker33.x=6;//starting x value
            checker33.y=8;//starting y value
            checker33.id=33;//Checker Id
            checker33.white=false;//Is it white?
            checker33.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker34 = new Checker();//Creates the checker object
            checker34.x=8;//starting x value
            checker34.y=8;//starting y value
            checker34.id=34;//Checker Id
            checker34.white=false;//Is it white?
            checker34.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker35 = new Checker();//Creates the checker object
            checker35.x=10;//starting x value
            checker35.y=8;//starting y value
            checker35.id=35;//Checker Id
            checker35.white=false;//Is it white?
            checker35.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker36 = new Checker();//Creates the checker object
            checker36.x=1;//starting x value
            checker36.y=7;//starting y value
            checker36.id=36;//Checker Id
            checker36.white=false;//Is it white?
            checker36.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker37 = new Checker();//Creates the checker object
            checker37.x=3;//starting x value
            checker37.y=7;//starting y value
            checker37.id=37;//Checker Id
            checker37.white=false;//Is it white?
            checker37.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker38 = new Checker();//Creates the checker object
            checker38.x=5;//starting x value
            checker38.y=7;//starting y value
            checker38.id=31;//Checker Id
            checker38.white=false;//Is it white?
            checker38.king=false;//Is it a king
            //checker  create code end


            //intalizing checker 
            //checker  create code starts
            Checker checker39 = new Checker();//Creates the checker object
            checker39.x=7;//starting x value
            checker39.y=7;//starting y value
            checker39.id=31;//Checker Id
            checker39.white=false;//Is it white?
            checker39.king=false;//Is it a king
            //checker  create code end



            //intalizing checker 
            //checker  create code starts
            Checker checker40 = new Checker();//Creates the checker object
            checker40.x=9;//starting x value
            checker40.y=7;//starting y value
            checker40.id=40;//Checker Id
            checker40.white=false;//Is it white?
            checker40.king=false;//Is it a king
            //checker  create code end
        }
    }

Answer 1

I would change Checker to something like this:

class Checker {
   private int x;
   private int y;
   private int id;
   private boolean white;
   private boolean king = false; // to clarify the default value

   public Checker(int x, int y, int id, boolean white) {
      this.x = x;
      this.y = y;
      this.id = id;
      this.white = white;
   }
   public boolean isKing() {
      return king;
   }
   public void setKing(boolean king) {
      this.king = king;
   }
   public int getX() {
      return x;
   }
   public int getY() {
      return y;
   }
   public int getId() {
      return id;
   }
   public boolean isWhite() {
      return white;
   }
}

Where you assign state to it in its constructor.

I'd create a CheckerSquare object that can hold a Checker object (or hold nothing).

I'd create a CheckersBoard class that is an 8 x 8 array of CheckerSquare objects.

I'd then use a for loop to fill the board's squares with appropriate Checker objects, and yes, if you work this out on paper, a for loop would work great for this, probably two of them though, one for white and one for black (though one could do it if you're a little clever).

I'd then create a Main class with a main method that initializes the objects above, and other necessary objects, such as a class to oversee the game itself, a class for Player, a class for the rules, and then get things started.