G:\AP Java\mazbuf\mazbuf.java:18: non-static method mazIn() cannot be referenced from a static context
        mazIn();
        ^
G:\AP Java\mazbuf\mazbuf.java:19: non-static method mazSolve() cannot be referenced from a static context
        mazSolve();
        ^
G:\AP Java\mazbuf\mazbuf.java:20: non-static method mazPrint() cannot be referenced from a static context
        mazPrint();

import java.io.*;
import java.util.*;

public class mazbuf
{
    public String[][] maze = new String[18][20];//maze array
    private int r = 0, c = 0, s = -1, begRow = 0, begCol = 0;//variables for array locations
    private boolean mazSolve = false, solution = false;

    public static void main(String[] args) throws IOException
    {
        mazIn();
        mazSolve();
        mazPrint();
    }

    public void mazIn() throws FileNotFoundException, IOException//changes the maze into an Array
    {
        BufferedReader kb = new BufferedReader(new FileReader("in_maze.txt"));//buffered reader is set to scan input file
        String tempLine = "";
        String tempCh = "";
        for(int b = 0; b <= 17; b++)
        {
            for(int a = 0; a <= 19; a++)
            {
                tempCh = tempLine.substring(a, (a+1));
                if(tempCh.equals("b"))//checks for the begining of the maze and sets the location if it is true
                {
                    r = b;
                    c = a;
                }
                maze[b][a] = tempCh;//adds variable to maze array
            }
        }
    }

    public boolean mazSolve()//solves the maze
    {
        if((maze[r][s++] != "@") || (maze[r][s++] != "b") || (maze[r][s++] != "*") || (maze[r][s++] != "?") || (maze[r][s++] != "s"))
        {
            s = s++;
            maze[r][s] = "@";
            mazSolve();
        }
        else if((maze[r][s--] != "@") || (maze[r][s--] != "b") || (maze[r][s--] != "*") || (maze[r][s--] != "?") || (maze[r][s--] != "s"))
        {
            s = s--;
            maze[r][s] = "@";
            mazSolve();
        }
        else if((maze[r--][s] != "@") || (maze[r--][s] != "b") || (maze[r--][s] != "*") || (maze[r--][s] != "?") || (maze[r--][s] != "s"))
        {
            r = r--;
            maze[r][s] = "@";
            mazSolve();
        }
        else if((maze[r++][s] != "@") || (maze[r++][s] != "b") || (maze[r++][s] != "*") || (maze[r++][s] != "?") || (maze[r++][s] != "s"))
        {
            r = r++;
            maze[r][s] = "@";
            mazSolve();
        }
        else if(maze[r][s] == "s")
            return true;
        else if(s == -1)
        {
            maze[r][s] = "?";
            s = 0;
        }
        else if(s == 0)
        {
            s = -1;
            if(maze[r][s++] == "@")
            {
                s = s++;
                mazSolve();
            }
            else if(maze[r][s--] == "@")
            {
                s = s--;
                mazSolve();
            }
            else if(maze[r--][s] == "@")
            {
                r = r--;
                mazSolve();
            }
            else if(maze[r++][s] == "@")
            {
                r = r++;
                mazSolve();
            }
        }

        return false;
    }

    public void mazPrint()throws FileNotFoundException, IOException//prints array
    {
        FileOutputStream out = new FileOutputStream("out_maze.txt");//outputstream is created for the file and to print to the text file
        PrintStream p = new PrintStream(out);
        for(int b = 0; b <= 17; b++)
        {
            if(b != 0)//checks if its the very first input
                p.println("");//line is read
            for(int a = 0; a <= 19; a++)
            {
                p.print(maze[b][a]);//prints the array
            }
        }
    }
}

public [u]static[/u] void mazIn() throws FileNotFoundException, IOException