Added java stack

data structures/stack/java/stack.java

@@ -0,0 +1,57 @@
+import java.io.*; 
+import java.util.*; 
+
+class Test 
+{    
+    // 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); 
+    } 
+}