File to 2d array printing null (Java)

Question

I am currently working on a game and right now (in the game) a level-editor/reader. The way I am doing this is by storing the levels in a txt file and then feeding the txt file into a bufferreader and then putting the text file into a 2d array like this [lines][words]. By this I mean that I want the number in the first square bracket to represent what line you want (from the file), and then choosing a word from that line with the other square bracket.

I get to print the file and store it in a 2d array in one class, but when i try to transfer the information to another class like so: String strLevel = TextHandler.getLevel("res/levels.txt")
And when i then try to print strLevel[1][1] it just print out null(s) in the console...

Here is the code for TextHandler.java:

public class TextHandler {

final static int LEVELS = Level.LEVEL_AMOUNT;
final static int MAX_LINES = 100;
final static int MAX_WORDS = 100;



public static String[][] getLevel(String path) throws IOException {
    int x = 0;
    int y = 0;

    String lines[][] = new String[MAX_LINES][MAX_WORDS];


    BufferedReader in = new BufferedReader(new FileReader(path));

    String line;

    while ((line = in.readLine()) != null)  //file reading
    {
       String[] values = line.split(" ");

       for (String str : values){   
           lines[x][y] = str;
           System.out.print(lines[x][y] + " ");    //This print funciton works!

           y += 1; 
       }

       x += 1;
       System.out.println("");
    }


    return lines;
}

}

This is the text file:

level 0
add TYPE_WALL 100 300 400 100
add TYPE_WALL 200 300 200 50
add TYPE_WALL 400 53 800 10
add TYPE_PLAYER 200 40

level 1
add TYPE_WALL 100 300 400 100
add TYPE_WALL 200 300 200 50
add TYPE_WALL 400 53 800 10
add TYPE_PLAYER 100 200

level 2
//Empty level

level 3
//Empty level

level 4
//Empty level

level 5
//Empty level

level 6
//Empty level

This is the outcome:

level 0
add TYPE_WALL 100 300 400 100
add TYPE_WALL 200 300 200 50
add TYPE_WALL 400 53 800 10
add TYPE_PLAYER 200 40

level 1 add TYPE_WALL 100 300 400 100 add TYPE_WALL 200 300 200 50 add TYPE_WALL 400 53 800 10 add TYPE_PLAYER 100 200

level 2

level 3

level 4

level 5

level 6
null
null
null
null
null
null
null
null
null
null

As i said earlier, the problem is when i try to make a 2d array that is equals to getLevel('path') and then print it, it prints "null"!!

Here is some Level class code:

package com.sontvedt.engine;

import java.io.IOException; import java.util.ArrayList;

import com.sontvedt.entity.*;

public class Level {

Utilities util = new Utilities();
TextHandler txt = new TextHandler();

static final int LEVEL_AMOUNT = 10;

String strLevel[][];

Player player;
Wall wall = new Wall(42,42,42,42);

ArrayList<Entity> objects = new ArrayList<Entity>();
Enemy[] enemies = new Enemy[20];        //This it later going to be added in the entities arrayList. The reason its a normal array is so that it would work with collision detection



//Pre-init of the levelAmount should be done here
public Level(){
    player = new Player(42, 42);

    try {
        strLevel = TextHandler.getLevel("res/levels.txt");
    } catch (IOException e) {
        e.printStackTrace();
    }



    //Init entities ArrayList       
        createLevels(0);

}

//Collision check
public void update(){
}


/*  LEVEL CREATION
 * 
 * The first thing that is going to be in the "level editor" text file
 * is which level the items are going to be added to. Like so:
 *      - level 0
 * 
 * The entity adding is later going to be added in a text file as so:
 *      - Group entity xPos yPos Width Height
 *      - enemies enemy 60 60, 200, 100
 * 
 * The player postition is the first two numbers in txt file,
 * Player is also the last item that should be added to entities
 * 
 * This may have to be in the end of the superloop
 *          
 * for(int i = 0; i < enemies.length; i++)
 *      entities[level].add(enemies[i]);
 * 
 */

public void createLevels(int level){
    objects.add(player);
    objects.add(wall);          

    //Should print add from text file/TextHandler.getLevel()
    System.out.println(strLevel[1][1]);


    for(int i = 0; i >= TextHandler.MAX_LINES; i++){
        for(int j = 0; j >= TextHandler.MAX_WORDS; j++){

            if(strLevel[j][j] == "level"){
                System.out.println("I found the word 'level', I'm so cool, look at meee... :P");
            }
        }
    }   
}

Have been searching for the answer for quite some time but i found nothing... Pleace Help!

Answer 1

Your not resetting your y value when you reach a new row:

while ((line = in.readLine()) != null)  //file reading
{
   String[] values = line.split(" ");
   y=0; // gotta start back at 0 when we get to a new line

---

Other stuff

//Should print add from text file/TextHandler.getLevel()
System.out.println(strLevel[1][1]);

The comment is incorrect, it should print TYPE_WALL.

---

if(strLevel[j][j] == "level"){

compare Strings using .equals not ==, for a null safe comparison use:

if("level".equals(strLevel[j][j]))

---

if(strLevel[j][j] == "level"){

im pretty sure you mean strLevel[i][j], also because you use x and y in other places you should try to stay consistent. Maybe rename i to x and j to y.