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  1. import java.io.*;
  2. import java.util.*;
  3. import java.lang.*;
  4. import java.text.*;
  5.  
  6.  
  7. public class MazeSolve1
  8. {
  9.   public static void main(String[] args)
  10.   {
  11. //Create arrayList of Points
  12. ArrayList<ArrayList<Points>> MAZE = new ArrayList<ArrayList<Points>>();
  13. Scanner in = new Scanner(System.in);
  14.  
  15. //Read File in
  16. System.out.print("Enter the file name: ");
  17. String fileName = in.nextLine();
  18. fileName = fileName.trim();
  19. FileReader reader = new FileReader(fileName+".txt");
  20. Scanner in2 = new Scanner(reader);
  21.  
  22. //Write file out
  23. FileWriter writer = new FileWriter("Numbers.out");
  24. PrintWriter out = new PrintWriter(writer);
  25. boolean done = false;
  26. int maxCol = 0;
  27. int maxRow = 0;
  28.  
  29. while(!done) {
  30.  
  31.     //creating array lists
  32.     while (in2.hasNextLine()) {
  33.         //Read next line
  34.         String nextLine = in2.nextLine();
  35.         //Tokenize Line
  36.         StringTokenizer st = new StringTokenizer(nextLine, " ");
  37.         //Create temp ArrayList
  38.         ArrayList<ArrayList<Points>> temp = new ArrayList<ArrayList<Points>>();
  39.  
  40.         //While there are more tokens
  41.         while (st.hasNextToken()) {
  42.             String token = st.nextToken();
  43.             Points pt = new Points();
  44.             temp.add(pt);
  45.             maxCol++
  46.         }
  47.         MAZE.add(temp);
  48.         maxRow++;
  49.     }
  50.  
  51.     //create hold arraylist for max rows of maze -1 
  52.     //create variables for start x and y coordinates
  53.     ArrayList<ArrayList<Points>> hold = new ArrayList<ArrayList<Points>>();
  54.     hold = MAZE.get(maxRow - 1);
  55.     int startColumn = hold.get(maxCol - 1);
  56.     int startRow = hold.get(maxRow - 1);
  57.     Point start = new Point();
  58.     start.setX(startColumn);
  59.     start.setY(startRow);
  60.  
  61.     //initialize stack, and push the start position
  62.     MyStack<Points> st = new ArrayStack<Points>();
  63.     st.push(start.toString1());
  64.     //south and east of start are edges of array
  65.     start.setSouth(false);
  66.     start.setEast(false);
  67.  
  68.     //while your position is not equal to point (0,0) [finish]
  69.     while (st.peek() != "(0, 0)") {
  70.  
  71.         //getting the next coordinate to the North
  72.         int nextY = start.getY() - 1;
  73.         int nextX = start.getX();
  74.  
  75.         //if character to the North is an O it's open and the North flag is true
  76.         if (hold.get(nextY) = 'O' && start.getNorth() == true) {
  77.             //set flags and push coordinate
  78.             start.setNorth(false);
  79.             st.push(start.toString1());
  80.         }
  81.         //else pop from stack
  82.         else { st.pop(); }
  83.  
  84.         //look at coordinate to the East
  85.         nextX = start.getX() + 1;
  86.         //if character to the East is a O and the East flag is true
  87.         if (hold.get(nextX) = 'O' && start.getEast() == true) {
  88.             //set flags and push coordinate
  89.             start.setEast(false);
  90.             st.push(start.toString1());
  91.         }
  92.         //else pop from stack
  93.         else { st.pop(); }
  94.  
  95.         //look at coordinate to the South
  96.         nextY = start.getY() + 1;
  97.         //if character to the South is a O and the West flag is true
  98.         if (hold.get(nextY) = 'O' && start.getSouth() == true) {
  99.             //set flags and push coordinate
  100.             start.setSouth(false);
  101.             st.push(start.toString1());
  102.         }
  103.         //else pop from stack
  104.         else { st.pop() }
  105.  
  106.         //keep looping until the top of the stack reads (0, 0)
  107.     }
  108.  
  109. done = true;
  110. }
  111.  
  112. //Print the results
  113. System.out.println("---Path taken---");   
  114. for (int i = 0; i< st.size(); i++) {
  115.     System.out.println(st.pop);
  116.     i++
  117. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:45: error: ';' expected
            maxCol++
                    ^
Main.java:104: error: ';' expected
        else { st.pop() }
                       ^
Main.java:116: error: ';' expected
    i++
       ^
Main.java:117: error: reached end of file while parsing
}
 ^
4 errors
stdout
copy 
Standard output is empty
https://ideone.com/ISzix4
language:
Java (12.0.1)
created:
8 years ago
visibility:
public

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