Added Neither Minimum nor Maximum.java

Author: varunu28

Easy/Neither Minimum nor Maximum.java

@@ -0,0 +1,16 @@
+class Solution {
+    public int findNonMinOrMax(int[] nums) {
+        int min = nums[0];   
+        int max = nums[0];
+        for (int num : nums) {
+            min = Math.min(num, min);
+            max = Math.max(num, max);
+        }
+        final int arrayMin = min;
+        final int arrayMax = max;
+        return Arrays.stream(nums)
+            .filter(num -> num != arrayMin && num != arrayMax)
+            .findFirst()
+            .orElse(-1);
+    }
+}