20 lines
634 B
Java
20 lines
634 B
Java
// onjava/Stack.java
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// (c)2021 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// A Stack class built with an ArrayDeque
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package onjava;
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import java.util.Deque;
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import java.util.ArrayDeque;
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public class Stack<T> {
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private Deque<T> storage = new ArrayDeque<>();
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public void push(T v) { storage.push(v); }
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public T peek() { return storage.peek(); }
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public T pop() { return storage.pop(); }
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public boolean isEmpty() { return storage.isEmpty(); }
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@Override public String toString() {
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return storage.toString();
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}
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}
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