结对编程第二阶段

Posted 2021-03-02 jixingyuan

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了结对编程第二阶段相关的知识，希望对你有一定的参考价值。

一、实验目标
　　1）体验敏捷开发中的两人合作。

　　2）进一步提高个人编程技巧与实践。

二、实验内容
　　1）根据以下问题描述，练习结对编程(pair programming)实践；

　　2）要求学生两人一组，自由组合。每组使用一台计算机，二人共同编码，完成实验要求。

　　3）要求在结对编程工作期间，两人的角色至少切换 4 次；

　　4）编程语言不限，版本不限。建议使用 Python 或 JAVA 进行编程。

1.实验代码规范

（1）命名规范：

类名是一个名词，采用大小写混合的方式，每个单词的首字母大写。此次用的静态类也有词组，但是依然遵从首字母大写的原则，

例如：ArrowActionListener，SquareActionListener，WdActionListener

接口的大小写规则与类名相似：例如：ActionListener

变量名第一个字母小写，任何中间单词的首字母大写。变量名应简短且可以顾名思义，易于记忆。例如：int arrowsColumns，int arrowsRows，

int minimunColumns

（2）注释规范（此次结对编程最重要核心部分）

1）注释尽可能使用“//”；对于所有的javadoc的注释则使用“/** */”；而临时对代码块进行注释尽量使用“/* */”。

2）所有的源文件都应该在开头有一个注释，其中列出文件名、日期和类的功能概述。

3）每个方法必须添加文档注释（类的main()方法除外）。

4）每个属性必须添加注释。

5）代码中至少包含15%的注释。

6）注释使用中文。

（3）缩进排版规范

1）避免一行的长度超过60个字符。

2）使用Eclipse的源代码的格式化功能完成代码的缩进排版(Ctrl+Shift+F)。

（4）编程规范

1）提供对实例以及类变量的public或private访问控制，尽可能不适用默认值或protected访问控制。

2）避免用一个对象访问一个类的静态变量或方法。应该用类名代替。

3）避免在一个语句中给多个变量赋相同的值。

下面是我与季兴元同学按照代码规范写的代码部分：

2.程序的整体设计：

首先，设计程序时，最终目标就是让程序按照生命游戏的规则迭代。起始图形则自定义。

1.本程序主要分为两个大模块：界面实现和规则模拟

界面实现：

技术图片

规则模拟：技术图片

3.程序结对编程过程（附图）及功能实现情况（附代码和图）

本次实验，我在编写代码中负责界面实现，王荡负责具体规则实现。

王荡在负责检查代码中负责检查界面模块，我负责检查规则实现。

代码：

package GameOfLife;

import javax.swing.*;

import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;

public class LifeGame extends JFrame{/*界面设计*/

private final World world;

public LifeGame(int rows,int columns) /*创建线程，游戏开始*/

{

world=new World(rows, columns);

new Thread(world).start();

add(world);

}

public static void main(String[]args)

{

LifeGame frame=new LifeGame(40, 50);

JMenuBar menu=new JMenuBar();

frame.setJMenuBar(menu);

JMenu options =new JMenu("选择图形");/*从自定义的图案中选择一个进行游戏*/

menu.add(options);/*菜单主界面添加options*/

JMenuItem arrow=options.add("Arrow");

arrow.addActionListener(frame.new ArrowActionListener());/*自定义图案，放到options中*/

JMenuItem square=options.add("Square");

square.addActionListener(frame.new SquareActionListener());

JMenuItem wd=options.add("wd");

wd.addActionListener(frame.new wdActionListener());

JMenu help=new JMenu("Help");

menu.add(help);

frame.setLocationRelativeTo(null);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(1007,859);

frame.setTitle("生命游戏");

frame.setVisible(true);

frame.setResizable(false);/*界面设计的参数从上到下依次为将窗口设置为中央，

添加关闭选项，设置窗口大小，标题设置刷新时不闪烁设置为不可自由调整大小 */

}

class ArrowActionListener implements ActionListener

{ /*arrow继承侦听器*/

public void actionPerformed(ActionEvent e)

{

world.setArrow();

}

class SquareActionListener implements ActionListener /*square继承侦听器*/

{

public void actionPerformed(ActionEvent e)

{

world.setSquare();

}

class wdActionListener implements ActionListener /*wd继承侦听器*/

{

public void actionPerformed(ActionEvent e)

{

world.setwd();

}

package GameOfLife;

import java.awt.*;import javax.swing.*;

public class World extends JPanel implements Runnable{/*此部分java方法用于遵守生命游戏的规则*/

private final int rows;/*行*/

private final int columns;

private final CellStatus[][] generation1;/*用于迭代的几个数组*/

private final CellStatus[][] generation2;

private CellStatus[][] currentGeneration;

private CellStatus[][] nextGeneration;

private volatile boolean isChanging = false;

public World(int rows, int columns)

{

this.rows=rows;

this.columns=columns;

generation1=new CellStatus[rows][columns];

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

generation1[i][j]=CellStatus.Dead;/*首先，将所有的点定义成死亡点*/

}

generation2=new CellStatus[rows][columns];

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

generation2[i][j]=CellStatus.Dead;

}

currentGeneration=generation1;

nextGeneration=generation2;

}

public void run()

{

while(true)

{

synchronized(this)

{

while(isChanging)

{

try

{

this.wait();

}catch(InterruptedException e)

{

e.printStackTrace();

}

repaint();

sleep(1);/*定义睡眠时间*/

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

evolve(i,j);

}

CellStatus[][]temp=null;

temp=currentGeneration;

currentGeneration=nextGeneration;/*迭代结果*/

nextGeneration=temp;

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

nextGeneration[i][j]=CellStatus.Dead;

}

public void paintComponent(Graphics g)/*根据矩阵的值进行绘图*/

{

super.paintComponent(g);

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

if(currentGeneration[i][j]==CellStatus.Active)

{

g.fillRect(j*20, i*20, 20, 20);/*若迭代位置对应为 active则填充为黑色*/

}

else

{

g.drawRect(j*20, i*20, 20, 20);/*死亡部分用矩形边框*/

}

public void setArrow()

{

setShape(arrow);

}

public void setSquare()

{

setShape(square);

}

public void setwd()

{

setShape(wd);

}

private void setShape(int [][]shape)

{

isChanging=true;

int arrowsRows=shape.length;

int arrowsColumns=shape[0].length;

int minimumRows=(arrowsRows<rows)?arrowsRows:rows;

int minimunColumns=(arrowsColumns<columns)?arrowsColumns:columns;

synchronized(this)

{

for(int i=0;i<rows;i++)

{

for(int j=0;j<columns;j++)

{

currentGeneration[i][j]=CellStatus.Dead;

}

for(int i=0;i<minimumRows;i++)

{

for(int j=0;j<minimunColumns;j++)

{

if(shape[i][j]==1)

{

currentGeneration[i][j]=CellStatus.Active;

}

isChanging=false;

this.notifyAll();

}

public void evolve(int x,int y)/*衍化的具体规则实现*/

{

int activeSurroundingCell=0;

if(isVaildCell(x-1,y-1)&&(currentGeneration[x-1][y-1]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x,y-1)&&(currentGeneration[x][y-1]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x+1,y-1)&&(currentGeneration[x+1][y-1]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x+1,y)&&(currentGeneration[x+1][y]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x+1,y+1)&&(currentGeneration[x+1][y+1]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x,y+1)&&(currentGeneration[x][y+1]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x-1,y+1)&&(currentGeneration[x-1][y+1]==CellStatus.Active))

activeSurroundingCell++;

if(isVaildCell(x-1,y)&&(currentGeneration[x-1][y]==CellStatus.Active))

activeSurroundingCell++;

// if(activeSurroundingCell==3)

{

nextGeneration[x][y]=CellStatus.Active;

}

else if(activeSurroundingCell==2)

{

nextGeneration[x][y]=currentGeneration[x][y];

}

else

{

nextGeneration[x][y]=CellStatus.Dead;

}

private boolean isVaildCell(int x,int y)

{

if((x>=0)&&(x<rows)&&(y>=0)&&(y<columns))

{

return true;

}

else

{

return false;

}

private void sleep(int x)

{

try {

Thread.sleep(1000*x);

} catch (InterruptedException e) {

e.printStackTrace();

}

static enum CellStatus

{

Active,

Dead;

}

private static final int[][] arrow = {//40*50 自定义的图案

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}

};

private static final int[][] square = {

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}

};

private static final int[][] wd = {

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},

{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}

};

}

功能实现：

技术图片

因为编写过程中bug较多，后期后期才想起截图，这里放几张图片

此处线程出现问题

技术图片

项目git地址：https://github.com/paxifaer/pp_project.git

技术图片

实验小结

这次结对编程实验让我体会到不一样的编程。双方不同的思维方式，能够弥补彼此很多缺点，例如，平常自己检查不到的错误对方却很容易检查的出来。实验的感觉就是，fingbugs确实实用，但是一些马虎造成的问题比如类名调用错误，还是需要个人来不断调试，其次，本次实验受益良多，参考了很多网上的代码。例如 Java中，将矩阵转换成图形。在给定图形后如何进行新一轮的迭代

等等。

由于时间原因，此次结对编程并不算圆满。但是从中确实收获了不少。

以上是关于结对编程第二阶段的主要内容，如果未能解决你的问题，请参考以下文章

20172320 结对编程项目-四则运算第二周阶段总结

实验：结对编程第二阶段

20172327 结对编程项目-四则运算第二周阶段总结

结对编程-第二阶段

结对编程（第二阶段）

结对编程第二阶段