Crazione Stack

stack/FixedArrayStack.java

@@ -0,0 +1,74 @@
+package stack;
+
+import exceptions.EmpyStackException;
+import exceptions.FullStackException;
+
+/**
+ * Created with MONSTER.
+ * User: xgiovio
+ * Date: 05/03/14
+ * Time: 0.12
+ */
+
+
+public class FixedArrayStack<E> extends StackRules<E> {
+
+
+    public  FixedArrayStack(){
+
+        stack = (E[])new Object[dcapacity];
+
+    }
+    public  FixedArrayStack( int size){
+
+        stack = (E[])new Object[size];
+
+    }
+
+
+    @Override
+    public void push(E element) throws FullStackException {
+               if (isFull())
+                   throw  new FullStackException();
+                   stack[++top] = element;
+    }
+
+    @Override
+    public E top() throws EmpyStackException {
+        if (isEmpty())
+            throw new EmpyStackException();
+            return stack[top];
+    }
+
+    @Override
+    public E pop() throws EmpyStackException {
+        if (isEmpty())
+            throw  new EmpyStackException();
+            return stack[top--];
+    }
+
+    @Override
+    public boolean isEmpty() {
+        if (size() < 1)
+            return true;
+            return false;
+    }
+
+    @Override
+    public boolean isFull() {
+        if (stack.length == (top + 1))
+            return true;
+            return false;
+    }
+
+    @Override
+    public int size() {
+        return (++top);
+    }
+
+
+    private int top = -1;
+    private int dcapacity = 100;
+    private E[] stack;
+
+}