代码说明文档java 代码说明文档app

java项目 代码结构说明书怎么写

接口文档,代码层次(比如公共方法写在哪个class里),哪些为一大类在一个包下,数据字典,就是介绍你这个项目的架构让后来的人怎么能容易参与开发,交接什么看这个就可以方便些,辅助作用的一个文档一般都是项目经理写

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java中说明书/开发文档如何编写

由于在java开发时我们得到的或者给别人的文件一般都是class文件,不会给出源文件,故编写一个简洁易懂的说明书是必须的。

ps: @param int[] arr 会有警告,可以删掉 int []。

用工具解析文档注释:javadoc工具

javadoc -d 目录 -d -author  -version ArrayTool.java

有时会提示出错:找不到可以文档化的公共或受保护的类--在class前加一个public即可。

我想要一个JAVA边的计算器的原码并有代码说明文档

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.math.*;

public class HomeWork61 extends JFrame

{

JTextField memory=new JTextField();

JTextField number=new JTextField();

String before=new String();//存储没输入完的数

String first=new String();//第一个数

String second=new String();//第二个数

String symbol=new String();//存储运算符号

String remember=new String();

int point;//点过小数点否

class buttonlistener implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

String s=e.getActionCommand();

if(s=="1"||s=="2"||s=="3"||s=="4"||s=="5"||s=="6"||s=="7"||s=="8"||s=="9"||s=="0"||s==".")

{

if(s!=".")

before=before+s;

else

if(point==0)

{

before=before+s;

point=1;

}

number.setText(before);

}

else

if(s=="+"||s=="-"||s=="*"||s=="/")

{

if(first=="")

first=before;

else

{

second=before;

String result=new String();

double finalnumber=0;

if(symbol=="+")

finalnumber=Double.parseDouble(first)+Double.parseDouble(second);

if(symbol=="-")

finalnumber=Double.parseDouble(first)-Double.parseDouble(second);

if(symbol=="*")

finalnumber=Double.parseDouble(first)*Double.parseDouble(second);

if(symbol=="/")

finalnumber=Double.parseDouble(first)/Double.parseDouble(second);

if(symbol=="=")

finalnumber=Double.parseDouble(first);

result=result.valueOf(finalnumber);

number.setText(result);

first=result;

point=0;

}

symbol=s;

before="";

point=0;

}

else

if(s=="=")

{

second=before;

before="";

String result=new String();

double finalnumber=0;

if(symbol=="+")

finalnumber=Double.parseDouble(first)+Double.parseDouble(second);

if(symbol=="-")

finalnumber=Double.parseDouble(first)-Double.parseDouble(second);

if(symbol=="*")

finalnumber=Double.parseDouble(first)*Double.parseDouble(second);

if(symbol=="/")

finalnumber=Double.parseDouble(first)/Double.parseDouble(second);

result=result.valueOf(finalnumber);

number.setText(result);

symbol="=";

first=result;

point=0;

}

if(s=="sin"||s=="cos"||s=="tan")//三角函数

{

if(first=="")

first=before;

before="";

String result=new String();

double finalnumber=0;

if(s=="sin")

finalnumber=Math.sin(Double.parseDouble(first));

if(s=="cos")

finalnumber=Math.cos(Double.parseDouble(first));

if(s=="tan")

finalnumber=Math.tan(Double.parseDouble(first));

result=result.valueOf(finalnumber);

number.setText(result);

first=result;

symbol="=";

point=0;

}

if(s=="+/-")//正负转换

{

if(first=="")

{

first=before;

before="";

String result=new String();

double finalnumber=Double.parseDouble(first);

finalnumber=-finalnumber;

result=result.valueOf(finalnumber);

number.setText(result);

first=result;

symbol="=";

point=0;

}

else

{

String result=new String();

double finalnumber=Double.parseDouble(before);

finalnumber=-finalnumber;

result=result.valueOf(finalnumber);

number.setText(result);

before=result;

point=0;

}

}

if(s=="M+")

{

if(before!="")

{

if(remember=="")

remember=before;

else

{

double finalnumber=Double.parseDouble(remember)+Double.parseDouble(before);

remember=remember.valueOf(finalnumber);

}

before="";

point=0;

memory.setText("M");

}

}

if(s=="MR")

{

if(remember!="")

number.setText(remember);

else

number.setText("0.");

}

if(s=="MC")

{

memory.setText("");

remember="";

}

if(s=="MS")

{

if(before!="")

{

remember=before;

before="";

point=0;

memory.setText("M");

}

}

if(s=="C")//清除屏幕

{

before="";

first="";

second="";

symbol="";

point=0;

number.setText("0.");

}

}

}

public static void main(String[] args)

{

HomeWork61 myhomework=new HomeWork61("calculator");//生成对象

myhomework.setSize(400,200);//设置大小

myhomework.setVisible(true);//设置成可见

}

public HomeWork61(String title)

{

super(title);//设置标题

Container cp = getContentPane();

JPanel button=new JPanel();

JPanel result=new JPanel();

remember="";

before="";

first="";

second="";

symbol="";

point=0;

JButton c=new JButton();

button.setLayout(new GridLayout(4,6));

result.setLayout(new GridLayout(1,3));

JButton[] btn=new JButton[24];

btn[0]=new JButton("sin");

btn[1]=new JButton("MC");

btn[2]=new JButton("0");

btn[3]=new JButton("1");

btn[4]=new JButton("2");

btn[5]=new JButton("+");

btn[6]=new JButton("cos");

btn[7]=new JButton("MR");

btn[8]=new JButton("3");

btn[9]=new JButton("4");

btn[10]=new JButton("5");

btn[11]=new JButton("-");

btn[12]=new JButton("tan");

btn[13]=new JButton("MS");

btn[14]=new JButton("6");

btn[15]=new JButton("7");

btn[16]=new JButton("8");

btn[17]=new JButton("*");

btn[18]=new JButton("+/-");

btn[19]=new JButton("M+");

btn[20]=new JButton("9");

btn[21]=new JButton(".");

btn[22]=new JButton("=");

btn[23]=new JButton("/");

c=new JButton("C");

for(int i=0;i24;i++)

{

btn[i].addActionListener(new buttonlistener());

button.add(btn[i]);

}

c.addActionListener(new buttonlistener());

result.add(BorderLayout.EAST,memory);

result.add(BorderLayout.CENTER,c);

result.add(BorderLayout.WEST,number);

cp.add(BorderLayout.NORTH,result);

cp.add(BorderLayout.SOUTH,button);

number.setText("0.");

}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.math.*;

public class HomeWork61 extends JFrame

{

JTextField memory=new JTextField();

JTextField number=new JTextField();

String before=new String();//存储没输入完的数

String first=new String();//第一个数

String second=new String();//第二个数

String symbol=new String();//存储运算符号

String remember=new String();

int point;//点过小数点否

class buttonlistener implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

String s=e.getActionCommand();

if(s=="1"||s=="2"||s=="3"||s=="4"||s=="5"||s=="6"||s=="7"||s=="8"||s=="9"||s=="0"||s==".")

{

if(s!=".")

before=before+s;

else

if(point==0)

{

before=before+s;

point=1;

}

number.setText(before);

}

else

if(s=="+"||s=="-"||s=="*"||s=="/")

{

if(first=="")

first=before;

else

{

second=before;

String result=new String();

double finalnumber=0;

if(symbol=="+")

finalnumber=Double.parseDouble(first)+Double.parseDouble(second);

if(symbol=="-")

finalnumber=Double.parseDouble(first)-Double.parseDouble(second);

if(symbol=="*")

finalnumber=Double.parseDouble(first)*Double.parseDouble(second);

if(symbol=="/")

finalnumber=Double.parseDouble(first)/Double.parseDouble(second);

if(symbol=="=")

finalnumber=Double.parseDouble(first);

result=result.valueOf(finalnumber);

number.setText(result);

first=result;

point=0;

}

symbol=s;

before="";

point=0;

}

else

if(s=="=")

{

second=before;

before="";

String result=new String();

double finalnumber=0;

if(symbol=="+")

finalnumber=Double.parseDouble(first)+Double.parseDouble(second);

if(symbol=="-")

finalnumber=Double.parseDouble(first)-Double.parseDouble(second);

if(symbol=="*")

finalnumber=Double.parseDouble(first)*Double.parseDouble(second);

if(symbol=="/")

finalnumber=Double.parseDouble(first)/Double.parseDouble(second);

result=result.valueOf(finalnumber);

number.setText(result);

symbol="=";

first=result;

point=0;

}

if(s=="sin"||s=="cos"||s=="tan")//三角函数

{

if(first=="")

first=before;

before="";

String result=new String();

double finalnumber=0;

if(s=="sin")

finalnumber=Math.sin(Double.parseDouble(first));

if(s=="cos")

finalnumber=Math.cos(Double.parseDouble(first));

if(s=="tan")

finalnumber=Math.tan(Double.parseDouble(first));

result=result.valueOf(finalnumber);

number.setText(result);

first=result;

symbol="=";

point=0;

}

if(s=="+/-")//正负转换

{

if(first=="")

{

first=before;

before="";

String result=new String();

double finalnumber=Double.parseDouble(first);

finalnumber=-finalnumber;

result=result.valueOf(finalnumber);

number.setText(result);

first=result;

symbol="=";

point=0;

}

else

{

String result=new String();

double finalnumber=Double.parseDouble(before);

finalnumber=-finalnumber;

result=result.valueOf(finalnumber);

number.setText(result);

before=result;

point=0;

}

}

if(s=="M+")

{

if(before!="")

{

if(remember=="")

remember=before;

else

{

double finalnumber=Double.parseDouble(remember)+Double.parseDouble(before);

remember=remember.valueOf(finalnumber);

}

before="";

point=0;

memory.setText("M");

}

}

if(s=="MR")

{

if(remember!="")

number.setText(remember);

else

number.setText("0.");

}

if(s=="MC")

{

memory.setText("");

remember="";

}

if(s=="MS")

{

if(before!="")

{

remember=before;

before="";

point=0;

memory.setText("M");

}

}

if(s=="C")//清除屏幕

{

before="";

first="";

second="";

symbol="";

point=0;

number.setText("0.");

}

}

}

public static void main(String[] args)

{

HomeWork61 myhomework=new HomeWork61("calculator");//生成对象

myhomework.setSize(400,200);//设置大小

myhomework.setVisible(true);//设置成可见

}

public HomeWork61(String title)

{

super(title);//设置标题

Container cp = getContentPane();

JPanel button=new JPanel();

JPanel result=new JPanel();

remember="";

before="";

first="";

second="";

symbol="";

point=0;

JButton c=new JButton();

button.setLayout(new GridLayout(4,6));

result.setLayout(new GridLayout(1,3));

JButton[] btn=new JButton[24];

btn[0]=new JButton("sin");

btn[1]=new JButton("MC");

btn[2]=new JButton("0");

btn[3]=new JButton("1");

btn[4]=new JButton("2");

btn[5]=new JButton("+");

btn[6]=new JButton("cos");

btn[7]=new JButton("MR");

btn[8]=new JButton("3");

btn[9]=new JButton("4");

btn[10]=new JButton("5");

btn[11]=new JButton("-");

btn[12]=new JButton("tan");

btn[13]=new JButton("MS");

btn[14]=new JButton("6");

btn[15]=new JButton("7");

btn[16]=new JButton("8");

btn[17]=new JButton("*");

btn[18]=new JButton("+/-");

btn[19]=new JButton("M+");

btn[20]=new JButton("9");

btn[21]=new JButton(".");

btn[22]=new JButton("=");

btn[23]=new JButton("/");

c=new JButton("C");

for(int i=0;i24;i++)

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