made some updates

Author: Akash073-hub

Arrays/finding_max_and_min.java

@@ -14,6 +14,7 @@ class min_max{
     int[] scores = {84, 92, 76, 90, 88, 95, 73, 89};
     int max =0;
     int min = Integer.MAX_VALUE;
+    int sum =0;
 
     void max_min() {
         for (int i = 0; i < scores.length; i++) {
@@ -24,7 +25,12 @@ void max_min() {
                 min = scores[i];
             }
         }
+        for(int j: scores){
+            sum += j;
+        }
+        double avg = (sum/(scores.length));
         System.out.println("The maximum number is: " + max);
         System.out.println("The minimum number is: " + min);
+        System.out.println("The average number is: " + avg);
     }
 }