Updated Grid Class

-Implemented nextGeneration(), clear() and randomGeneration(Random random) methods.

tp3/Grid.java

@@ -149,7 +149,11 @@ public class Grid implements Iterable<Cell> {
      * Sets all {@link Cell}s in this {@code Grid} as dead.
      */
     void clear() {
-
+        for (int i = 0; i < this.numberOfRows; i++) {
+            for (int j = 0; j < this.numberOfColumns; j++) {
+                cells[i][j].setDead();
+            }
+        }
     }
 
     /**
@@ -160,7 +164,13 @@ public class Grid implements Iterable<Cell> {
      */
 
     void randomGeneration(Random random) {
-
+        for (int i = 0; i < getNumberOfRows(); i++) {
+            for (int j = 0; j < getNumberOfColumns(); j++) {
+                if(random.nextBoolean()){
+                    cells[i][j].setAlive();
+                }
+            }
+        }
     }
 
 }