第二周个人作业(代码片段)

public static void charcount(String thefile)
int charcount=0;
String sfile=new String(thefile);
File file=new File(sfile);
if(file.exists())
try
FileInputStream fis=new FileInputStream(file);
InputStreamReader isr=new InputStreamReader(fis,"UTF-8");
BufferedReader br=new BufferedReader(isr);
String line=new String("");
StringBuffer sb=new StringBuffer();
while((line=br.readLine())!=null)
sb.append(line);
charcount+=line.length();

br.close();
isr.close();
fis.close();

catch(FileNotFoundException e)
e.printStackTrace();

catch(UnsupportedEncodingException e)
e.printStackTrace();

catch(IOException e)
e.printStackTrace();


try
//打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件
FileWriter writer = new FileWriter("result.txt", true);
char[] message=(thefile+", 字符数："+charcount+"\\r\\n").toCharArray();//换行"\\r\\n"不是"\\n"
writer.write(message);
writer.close();

catch(IOException e)
System.out.println("File read/write Error"+e);

static void complex(String myfile,String outfile)throws FileNotFoundException  
if(outfile==null)
outfile="result.txt";
String sfile=new String(myfile);
File file=new File(sfile);
// 记录注释行数 
long annotationLine = 0; 
// 记录空白行数 
long blankLine = 0; 
// 记录有效代码的行数 
long codeLine = 0; 
//假注释
long notLine=0;
if (file == null || !file.exists()) 
throw new FileNotFoundException(file + "，文件不存在！"); 
BufferedReader br = null; 
// 判断此行是否为注释行 
boolean comment = false; 
int whiteLines = 0; 
int commentLines = 0; 
int normalLines = 0; 
try  
br = new BufferedReader(new FileReader(file)); 
String line = ""; 
while ((line = br.readLine()) != null)  
line = line.trim(); 
if (line.matches("^[//s&&[^//n]]*$")||line.equals("")||line.equals(""))  
// 空行 :本行全部是空格或格式控制字符，如果包括代码，则只有不超过一个可显示的字符，例如“”
whiteLines++; 
 
/* 本行不是代码行，并且本行包括注释。一个有趣的例子是有些程序员会在单字符后面加注释：
* //注释
*/
else if (line.startsWith("/*") && !line.endsWith("*/")||((line.startsWith("/*")||line.startsWith("/*"))&&!line.endsWith("*/")))
// 判断此行为"/*"开头的注释行 
commentLines++; 
comment = true; 
 else if (comment == true && !line.endsWith("*/")&&!line.startsWith("*/"))  
// 为多行注释中的一行（不是开头和结尾）
notLine++;
commentLines++; 
 else if (comment == true && (line.endsWith("*/")||line.startsWith("*/")))  
// 为多行注释的结束行 
commentLines++; 
comment = false; 
 else if (line.startsWith("//")|| line.startsWith("//")||line.startsWith("//")||
((line.startsWith("/*") ||line.startsWith("/*")||line.startsWith("/*")) && line.endsWith("*/")))  
// 单行注释行 
commentLines++; 
 else  
// 正常代码行 
//System.out.println(line);
normalLines++; 
 
 
 catch (FileNotFoundException e)  
e.printStackTrace(); 
 catch (IOException e)  
e.printStackTrace(); 
 finally  
if (br != null)  
try  
br.close(); 
br = null; 
 catch (IOException e)  
e.printStackTrace(); 
 
 
try
//打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件
FileWriter writer = new FileWriter(outfile, true);
char[] message=(myfile+",代码行/空行/注释行:"+(normalLines+notLine)+"/"+whiteLines+"/"+(commentLines-notLine)+"\\r\\n").toCharArray();//换行"\\r\\n"不是"\\n"
writer.write(message);
writer.close();

catch(IOException e)
System.out.println("File read/write Error"+e);

 

public class wc
    public static void main(String[] args) 
        int len=args.length;
        String one,two,three,four,five,six,seven,eight,night;//定义参数
        if(len<=1)
            System.out.println("请按照格式输入");
        else 
            if(len==2)
            
                one=args[0];
                two=args[1];
                if(one.equals("-a"))
                    try 
                        //System.out.println("morrdate");
                        extendedC.complex(two,null);
                     catch (FileNotFoundException e) 
                        e.printStackTrace();
                    
                else if(one.equals("-l")||one.equals("-c")||one.equals("-w"))
                    baseC.count(one, two);
                else System.out.println("无该操作");
                            
            
            else if(len==3)
            
                one=args[0];two=args[1];three=args[2];
                if(three.endsWith(".c"))
                    if((one.equals("-l")||one.equals("-c")||one.equals("-w")&&(two.equals("-l")||two.equals("-c")||two.equals("-w"))))//需两功能处理文件
                          baseC.count(one, two, three);
                    else if(one.equals("-s")&&(two.equals("-l")||two.equals("-c")||two.equals("-w")||two.equals("-a")))//递归处理文件（简单统计单词、字符或行）（处理代码行、注释行和空行)
                               
                             String[] list=two,three;
                              extendedC.allfile(list);
                             
                    else System.out.println("输入格式错误！");
                      
               else if(three.endsWith(".txt")&&two.equals("-e"))//停用词表,单词数
                       extendedC.stop(one, three,null);
                
                else System.out.println("输入格式错误！");
        
            else if(len==4)
                one=args[0];two=args[1];three=args[2];four=args[3];
                if(four.endsWith(".c"))
                        if((one.equals("-l")||one.endsWith("-c")||one.equals("-w"))&&(two.equals("-l")||two.equals("-c")||two.equals("-w"))
                                &&(three.equals("-l")||three.equals("-c")||three.equals("-w")))//需三功能处理文件
                                baseC.count(one, two, three,four);
                        else if(one.equals("-s")&&(two.equals("-l")||two.equals("-c")||two.equals("-w"))
                                    &&(three.equals("-l")||three.equals("-c")||three.equals("-w")))//递归处理文件（简单统计单词、字符或行)
                            
                                    String[] list=two,three,four;
                                    extendedC.allfile(list);
                                
                            else System.out.println("输入格式错误！");
                            
                    else if(two.endsWith(".c")&&three.equals("-o"))
                               baseC.count(one, two,three,four);
                    else System.out.println("请按照正确格式输入");
                
            
            else if(len==9)
                one=args[0];two=args[1];three=args[2];four=args[3];five=args[4];six=args[5];seven=args[6];eight=args[7];night=args[8];
                if(one.equals("-s")&&two.equals("-a")&&(three.equals("-l")||three.equals("-c")||three.equals("-w"))
                        &&(four.equals("-l")||four.equals("-c")||four.equals("-w"))&&six.equals("-e")&&eight.equals("-o"))
                    
                            String[] list=two,three,four,five,six,seven,eight,night;
                            extendedC.allfile(list);
                    
                else System.out.println("请按照格式输入");
            
            else System.out.println("请按照格式输入");
            
    

    

wc.exe -c 

wc.exe -a file.c

wc.exe -l file.c

wc.exe -n file.c  //输出“无该操作”

wc.exe -l -c file.c

wc.exe -c -e *.txt //"*.txt"表示txt文件

wc.exe -s -a *.c

wc.exe -c -w -l file.c

wc.exe -s -l -c file.c

wc.exe -s -a –c -w *.c–e stop.txt –o –output.txt