# 資料結構 20221017_StackByList

>撰寫人[name=AmiYaku1049] [首頁--天空路1049號](https://skys-kid-lai.github.io/1004/)
>>最後編輯[time=Wed, Jan 18, 2023 7:54 PM]
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## 題目敘述
沒有。
就是堆疊實作。
## 程式碼

import java.io.*;

class ClassWork_1110832059_1017_stackByList 
{
	public static void main(String[] args) throws IOException
	{
		BufferedReader buf;
		buf = new BufferedReader(new InputStreamReader(System.in));
		StackByLink stack = new StackByLink();
		int choice = 0;
		while(true)
		{
			System.out.print("[0: End, 1: Push, 2: Pop]: ");
			choice = Integer.parseInt(buf.readLine());
			if(choice == 2)
			{
				stack.Pop();
				System.out.println("The stack after the number poped: ");
				stack.PrintStack();
			}
			else if(choice == 1)
			{
				System.out.print("Please insert number into the stack: ");
				choice = Integer.parseInt(buf.readLine());
				stack.Insert(choice);
				System.out.println("The stack after the number inserted: ");
				stack.PrintStack();
			}
			else if(choice == 0)
				break;
			else
				System.out.println("Insert Error!");
		}
	}
}


class Node
{
	int data;
	Node next;
	public Node(int data)
	{
		this.data = data;
		this.next = null;
	}
}

class StackByLink
{
	public Node front;
	public Node rea;

	public boolean isEmpty()
	{
		return front == null;
	}

	public void PrintStack()
	{
		Node current = front;
		while(current != null)
		{
			System.out.print("[" + current.data + "]");
			current = current.next;
		}
		System.out.println();
	}

	public void Insert(int data)
	{
		Node newNode = new Node(data);
		if(this.isEmpty())
		{
			front = newNode;
			rea = newNode;
		}
		else
		{
			rea.next = newNode;
			rea = newNode;
		}
	}

	public void Pop()
	{
		Node newNode;
		if(this.isEmpty())
		{
			System.out.println("It's an empty stack");
			return;
		}
		newNode = front;
		if(newNode == rea)
		{
			front = null;
			rea = null;
			System.out.println("It's an empty stack");
		}
		else
		{
			while(newNode.next != rea)
				newNode = newNode.next;
			newNode.next = rea.next;
			rea = newNode;
		}
	}
}

## 結果圖示

## 用書資訊：
>書名：圖解資料結構 使用java（第三版）
>作者：吳燦銘、胡昭民
>出版社：博碩文化
>出版年份：2018年05月