diff --git a/JavaHackerrank/Java BigInteger.java b/JavaHackerrank/Java BigInteger.java
new file mode 100644
index 00000000..ac84316a
--- /dev/null
+++ b/JavaHackerrank/Java BigInteger.java	
@@ -0,0 +1,21 @@
+import java.io.*;
+import java.util.*;
+
+import java.io.*;
+import java.util.*;
+import java.text.*;
+import java.math.*;
+import java.util.regex.*;
+
+public class Solution {
+
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        String numOne = in.nextLine();
+        String numTwo = in.nextLine();
+        BigInteger bigNumOne = new BigInteger(numOne);
+        BigInteger bigNumTwo = new BigInteger(numTwo);
+        System.out.println(bigNumOne.add(bigNumTwo));
+        System.out.println(bigNumOne.multiply(bigNumTwo));
+    }
+}
diff --git a/JavaHackerrank/Java1DArray.java b/JavaHackerrank/Java1DArray.java
index 94cba664..78195ccb 100644
--- a/JavaHackerrank/Java1DArray.java
+++ b/JavaHackerrank/Java1DArray.java
@@ -6,10 +6,14 @@ public static void main(String[] args) {
 	   
         Scanner scan = new Scanner(System.in);
         int n = scan.nextInt();
-	int a[] = new int[n];
-	for(int i = 0; i<a.length; i++) {
-    		a[i] = scan.nextInt();
-	}
+	      int a[] = new int[n];
+	      for(int i = 0; i<a.length; i++) {
+              a[i] = scan.nextInt();
+	      }
+	      int a[] = new int[n];
+	     for(int i = 0; i<a.length; i++) {
+    		      a[i] = scan.nextInt();
+	      }
         scan.close();
 
         // Prints each sequential element in array a