stack added

DataStructures/Stack.java

@@ -0,0 +1,66 @@
+
+import java.io.*;
+import java.util.*;
+
+class Test {
+
+    // Java code for stack implementation
+
+
+
+
+        // Pushing element on the top of the stack
+        static void stack_push(Stack<Integer> stack)
+        {
+            for(int i = 0; i < 5; i++)
+            {
+                stack.push(i);
+            }
+        }
+
+        // Popping element from the top of the stack
+        static void stack_pop(Stack<Integer> stack)
+        {
+            System.out.println("Pop :");
+
+            for(int i = 0; i < 5; i++)
+            {
+                Integer y = (Integer) stack.pop();
+                System.out.println(y);
+            }
+        }
+
+        // Displaying element on the top of the stack
+        static void stack_peek(Stack<Integer> stack)
+        {
+            Integer element = (Integer) stack.peek();
+            System.out.println("Element on stack top : " + element);
+        }
+
+        // Searching element in the stack
+        static void stack_search(Stack<Integer> stack, int element)
+        {
+            Integer pos = (Integer) stack.search(element);
+
+            if(pos == -1)
+                System.out.println("Element not found");
+            else
+                System.out.println("Element is found at position " + pos);
+        }
+
+
+        public static void main (String[] args)
+        {
+            Stack<Integer> stack = new Stack<Integer>();
+
+            stack_push(stack);
+            stack_pop(stack);
+            stack_push(stack);
+            stack_peek(stack);
+            stack_search(stack, 2);
+            stack_search(stack, 6);
+        }
+
+
+
+}

DataStructures/addition.py

@@ -0,0 +1,6 @@
+import tf
+# Create two constants, each with value 1
+a = tf.constant(1)
+b = tf.constant(1)
+# Add them together to get...
+print(a + b)