diff --git a/binarysearch b/binarysearch
new file mode 100644
index 0000000..fd0f590
--- /dev/null
+++ b/binarysearch
@@ -0,0 +1,32 @@
+public class binarysearch {
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		int[] arr= {10,20,30,40,50};
+		
+		int data=30;
+		System.out.println(binary(arr,data));
+	}
+	public static int binary(int[] arr,int data) {
+		int start=0;
+		int end=arr.length-1;
+		while(start<=end)
+		{
+			int mid=(start+end)/2;
+			if(arr[mid]==data)
+			{
+				return mid;
+			}
+			else if(arr[mid]<data){
+              start=mid+1;	
+              
+			}
+			else if(arr[mid]>data){
+				end=mid-1;
+			}
+			
+		}
+return -1;
+	}
+
+}