Filling 2D Array

Hi all, I'm having a little trouble getting my head around

Code:

---

static void fill(char[] a, char val)]

---

I'm not entirely sure what its telling me to do.
This is the section of code containing this:

Code:

---

public static class Grid
        {
                Grid[][] twoDimGrid = new Grid[31][31]; // 31x31 grid
                private static void fill(char[] twoDimGrid, char ' ');
                void print(){System.out.println(this.twoDimGrid);}
        }

---

From what i've gather i type "char[]" then the name of array im filling "twoDimGrid" then i use a comma and enter char val. So i type "char ' '" However i get errors on eclipse saying:

Syntax error on token "' '", invalid VariableDeclaratorld

I have no idea what this means, if i cant use a space as a char what else should i use for my grid?

i managed to get it t compile with no errors, however it does not display the array, any ideas why?

Code:

---

//define SnakeGame class
public class SnakeGame
{
        char s = ' ';
        //create main method(All Java prgrams need one to run ;))
        public static void main(String[] args)
        {
               
        }
        //Create a 2D grid for the game to be played on
        public static class Grid
        {
                Grid[][] grid = new Grid[31][31]; // 31x31 grid
                static void fill(char grid[][], char _){}
                void print(){System.out.println(this.grid);}
        }
       
}

---

Quote:

---

Originally Posted by Nakira

i managed to get it t compile with no errors, however it does not display the array, any ideas why?

---

It goes something like this.I'm not proficient on the enhanced for loop, probably have one or more blunders but it is something like this.

Code:

---

// preliminary
public class SnakeGame
{
    //create main method(All Java prgrams need one to run ;))
    public static void main(String[] args)
    {
        Grid grid = new Grid();
        grid.fill();//
        grid.print();//
    }
    //Create a 2D grid for the game to be played on
    public class Grid
    {
        char s = ' ';
        char [][] grid = new char[31][31]; // 31x31 grid
        void fill()
        {
            for( char[] row : grid )
            {
                for( char row : column )
                {
                    column = s;
                }
            }
        }
        void print()
        {
            for( char[] row : grid )
            {
                for( char row : column )
                {
                    System.out.println(column);
                }
            }
        }
    }
}

---

A massive thanks for this, i can see where your coming from now and I'm beginning to understand it better, however that code produced 7 errors. :s

Code:

---

SnakeGame2.java:7: non-static variable this cannot be referenced from a static context
        Grid grid = new Grid();
                    ^
SnakeGame2.java:20: row is already defined in fill()
                for( char row : column )
                          ^
SnakeGame2.java:20: cannot find symbol
symbol  : variable column
location: class SnakeGame2.Grid
                for( char row : column )
                                ^
SnakeGame2.java:22: cannot find symbol
symbol  : variable column
location: class SnakeGame2.Grid
                    column = s;
                    ^
SnakeGame2.java:30: row is already defined in print()
                for( char row : column )
                          ^
SnakeGame2.java:30: cannot find symbol
symbol  : variable column
location: class SnakeGame2.Grid
                for( char row : column )
                                ^
SnakeGame2.java:32: cannot find symbol
symbol  : variable column
location: class SnakeGame2.Grid
                    System.out.println(column);
                                      ^

---

i would try and sort them but i dont understand. :s