diff --git a/BinarySearch b/BinarySearch
new file mode 100644
index 0000000..3063639
--- /dev/null
+++ b/BinarySearch
@@ -0,0 +1,34 @@
+import java.util.Scanner;
+
+public class BinarySearch {
+    public static void main(String[] args) {
+        Scanner s=new Scanner((System.in));
+        int n=s.nextInt();
+        int[] arr=new int[n];
+        for (int i = 0; i <n; i++) {
+            arr[i]=s.nextInt();
+        }
+        int search=s.nextInt();
+        int index=binsearch(arr,search);
+        System.out.println(index);
+    }
+    public static int binsearch(int[] arr,int search){
+        int ans=0;
+        int first=0;
+        int last=arr.length-1;
+        while(first<=last) {
+            int mid=(first+last)/2;
+            if(arr[mid]>search){
+                last=mid-1;
+            }
+            else if(arr[mid]<search){
+                first=mid+1;
+            }
+            else{
+                return mid;
+            }
+
+        }
+        return -1;
+    }
+}