data-structure-service/src/main/java/com/example/data_structure/domain/Stack.java

package com.example.data_structure.domain;

import java.util.ArrayList;

public class Stack {

    public static final int MAX_SIZE =20;
    private int capacity; //栈的最大容量
    private int size; //栈现有的元素数
    private String elementType; //栈元素的类型,有char，String,int，double四种类型
    private ArrayList<Object> content;

    /**
     * 指定最大容量的构造方法
     * @param capacity
     * @param elementType
     * @param content
     */
    public Stack(int capacity,String elementType, ArrayList<Object> content) {
        this.capacity = capacity;
        this.elementType = elementType;
        this.content = content;
    }

    /**
     * 不指定最大容量的构造方法
     * @param elementType
     * @param content
     */
    public Stack( String elementType, ArrayList<Object> content) {
        this.elementType = elementType;
        this.content = content;
    }

    private boolean isFull(){
        return false;
    }
    private boolean isEmpty(){
        return true;
    }

    /**
     * push操作成功返回true,否则返回false
     * @return
     */
    public boolean push(){
        return false;
    }

    /**
     * pop()操作成功返回true,否则返回false
     * @return
     */
    public boolean pop(){
        return false;
    }

    public void makeEmpty(){

    }

}