diff --git a/Java/SlidingWindow.java b/Java/SlidingWindow.java
new file mode 100644
index 0000000..8688786
--- /dev/null
+++ b/Java/SlidingWindow.java
@@ -0,0 +1,60 @@
+import java.util.Deque;
+import java.util.LinkedList;
+public class Slidingwindow {
+
+
+
+
+
+
+	
+
+		public static void main(String[] args) {
+			Solution solution= new Solution();
+			int a[]= {4,3,1,2,5,3,4,7,1,9};
+			int ans[]=  solution.maxSlidingWindow(a, 4);
+
+			for(int x:ans) {
+				System.out.print(x+" ");
+			}
+			}
+			static	class Solution {
+				    public int[] maxSlidingWindow(int[] a, int k) {
+		               int n= a.length;
+				    	Deque<Integer>dq=new LinkedList<>();
+			   int ans[]=new int[n-k+1];
+
+
+			   int i=0;
+			   for(;i<k;i++) {
+		              while(!dq.isEmpty()&& a[dq.peekLast()]<=a[i])	{
+		            	  dq.removeLast();
+		              }
+			   dq.addLast(i);
+			   }
+			   for(;i<n;i++) {
+
+				   ans[i-k]=a[dq.peekFirst()];
+
+			   while(!dq.isEmpty() &&  dq.peekFirst()<=i-k) {
+			   dq.removeFirst();
+
+			   }
+
+			   while(!dq.isEmpty()&& a[dq.peekLast()]<=a[i])	{
+		     	  dq.removeLast();
+		       }
+		dq.addLast(i);
+			   }
+		ans[i-k]=a[ dq.peekFirst()];
+		return ans;
+
+
+
+
+
+				}
+
+		}
+
+	}