Added java code for stack implementation using array please merge it

Data Structures/StackImpl.java

@@ -0,0 +1,66 @@
+public class StackImpl {
+	int top = 0;
+	int MAX = 5;
+	int[] a = new int[MAX]; 
+	private boolean isFull() {
+		if(top == MAX) {
+			return true;
+    }
+    return false;
+  }
+  public void insert(int val) {
+    if(isFull()) {
+      System.out.println("Stack is full");
+      return;
+    }
+
+    a[top++] = val;
+  }
+
+  private boolean isEmpty() {
+    if(top == 0) {
+      return true;
+    }
+
+    return false;
+  }
+
+  public int remove() {
+    if(isEmpty()) {
+      System.out.println("Stack is Empty");
+      return Integer.MIN_VALUE;
+    }
+
+    return a[--top];
+  }
+
+  public int top() {
+    if(isEmpty()) {
+      System.out.println("Stack is Empty");
+      return Integer.MIN_VALUE;
+    }
+
+    return a[top - 1];
+  }
+  public static void main(String[] args) {
+    StackImpl a = new StackImpl();
+    a.insert(12);
+    a.insert(5);
+    a.insert(34);
+    a.insert(42);
+    a.insert(91);
+    a.insert(9);
+
+    System.out.println(a.remove());
+    a.insert(9);
+
+    System.out.println("Top:" + a.top());
+
+    System.out.println(a.remove());
+    System.out.println(a.remove());
+    System.out.println(a.remove());
+    System.out.println(a.remove());
+    System.out.println(a.remove());
+    System.out.println(a.remove());
+  }
+}