implement generateTriangle method in MainExercises

src/main/java/MainExercises.java

@@ -1,28 +1,26 @@
 public class MainExercises
 {
-    /*
-    you should create a triangle with "*" and return a two-dimensional array of characters based on that
-    the triangle's area is empty, which means some characters should be " "
-
-    example 1, input = 3:
-    *
-    **
-    ***
-
-    example 2, input = 5:
-    *
-    **
-    * *
-    *  *
-    *****
-
-    the output has to be a two-dimensional array of characters, so don't just print the triangle!
- */
     public char[][] generateTriangle(int n) {
 
-        // todo
-        return null;
+        char[][] result = new char[n][n];
+        
+        for (int i = 0; i < n; i++)
+        {
+            if (i == n-1)
+            {
+                for (int j = 0; j <= i; j++)
+                {
+                    result[i][j] = '*';
+                }
+            }
+            else 
+            {
+                result[i][0] = '*';
+                result[i][i] = '*';
+            }
+        }
 
+        return result;
     }