FastStack.java Source code

Introduction

Here is the source code for FastStack.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.ArrayList;

public class FastStack<T> extends ArrayList<T> {

    public void push(T o) {
        add(o);
    }

    public T pop() {
        return remove(size() - 1);
    }

    public boolean empty() {
        return size() == 0;
    }

    public T peek() {
        return get(size() - 1);
    }
}