- Added guest contribution by Mohammad Meraj Zia.

1 files changed, 31 insertions, 0 deletions

diff --git a/challenge-160/ziameraj16/java/EquilibriumIndex.java b/challenge-160/ziameraj16/java/EquilibriumIndex.java
new file mode 100755
index 0000000000..34b498afcb
--- /dev/null
+++ b/challenge-160/ziameraj16/java/EquilibriumIndex.java
@@ -0,0 +1,31 @@
+import java.util.Arrays;
+import java.util.List;
+import java.util.Scanner;
+import java.util.stream.Collectors;
+
+public class EquilibriumIndex {
+
+    public static void main(String... args) {
+        System.out.println("Enter comma separated elements of the list");
+        Scanner scanner = new Scanner(System.in);
+        String line = scanner.nextLine();
+        boolean found = false;
+        List<Integer> list = Arrays.stream(line.split(",")).map(Integer::valueOf).collect(Collectors.toList());
+        for (int i = 1; i < list.size() - 1; i++) {
+            int leftSum = sum(list.subList(0, i));
+            int rightSum = sum(list.subList(i + 1, list.size()));
+            if (leftSum == rightSum) {
+                System.out.println(i);
+                found = true;
+                break;
+            }
+        }
+        if (!found) {
+            System.out.println("-1 as no Equilibrium Index found");
+        }
+    }
+
+    private static int sum(List<Integer> subList) {
+        return subList.stream().reduce(0, Integer::sum);
+    }
+}