diff --git a/Java/Swap/SwapWithoutUsingtempvar.java b/Java/Swap/SwapWithoutUsingtempvar.java
new file mode 100644
index 00000000..427e297f
--- /dev/null
+++ b/Java/Swap/SwapWithoutUsingtempvar.java
@@ -0,0 +1,32 @@
+/*
+Copyright [2020] [Priyanka prasad ] 
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+// Java Program to swap two numbers  without
+// using temporary variable
+import java.*;
+ 
+class Swap {
+ 
+    public static void main(String a[])
+    {
+        Scanner scan = new.Scanner(System.in);
+        System.out.print("Enter X Value: ");
+        int x = scan.nextInt();
+        System.out.print("Enter Y Value: ");
+        int y = scan.nextInt();
+        x = x + y;
+        y = x - y;
+        x = x - y;
+        System.out.println("After swaping:"
+                           + " x = " + x + ", y = " + y);
+    }
+}
diff --git a/Python/Algorithms/BubbleSort.py b/Python/Algorithms/BubbleSort.py
new file mode 100644
index 00000000..41d0aca3
--- /dev/null
+++ b/Python/Algorithms/BubbleSort.py
@@ -0,0 +1,38 @@
+
+'''
+Copyright [2020] [Priyanka prasad ] 
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+'''
+#---------------------------------------
+# Bubble Sort
+#---------------------------------------
+# not optimized			
+def bubble_sort1(A):
+	for i in range (0, len(A) - 1):
+		for j in range (0, len(A) - i - 1):
+			if A[j] > A[j+1]:
+				A[j], A[j+1] = A[j+1], A[j]
+				
+# optimized to exit if no swaps occur		
+def bubble_sort2(A):
+	for i in range (0, len(A) - 1):
+		done = True
+		for j in range (0, len(A) - i - 1):
+			if A[j] > A[j+1]:
+				A[j], A[j+1] = A[j+1], A[j]
+				done = False
+		if done:
+			return
+			
+A = [5,9,1,2,4,8,6,3,7]
+print(A)
+bubble_sort1(A)
+print(A)