grid and ra,dom grid done

src/Main.java

@@ -8,4 +8,4 @@ public class Main {
 		mjf.setVisible(true);
 	}
 
-}
+}

src/backend/Grid.java

@@ -6,6 +6,7 @@ public class Grid {
     private int height;
     private int[][] grid;
     private int rando;
+    private Random rand = new Random();
     public Grid(int width, int height) {
         this.width = width;
         this.height = height;
@@ -31,10 +32,13 @@ public class Grid {
     public void fillRandom(float randomness) {
         for (int y = 0; y < height; y++) {
             for (int x = 0; x < width; x++) {
-            	int rando = Random.nextInt(100);
-            	int r= (int) randomness*100;
-            	if(rando<r) {
-            		grid[y][x] = 1;}
+                int rando = rand.nextInt(100);
+                int r = (int) (randomness * 100); 
+                if (rando < r) {
+                    grid[y][x] = 1;
+                } else {
+                    grid[y][x] = 0;
+                }
             }
         }
     }