tf.txt

这个是学习网络编程的好好文档！ 里面有一些老师发给的学习jsp的课件！

1  import java.io.*;

2  public class TextFile

3  {

4    public static void type(String fileName)

5    {

6      int ch;

7      try

8      {

9        FileReader fr = new FileReader(fileName);

10        while((ch = fr.read())!=-1)

11          System.out.print((char)ch);

12        fr.close();

13      }

14      catch(IOException ex)

15      {

16        System.out.println("显示文件失败!");

17      }

18    }

19    public static void list(String fileName)

20    {

21      String aLine;

22      int lineNo = 1;

23      System.out.println("\n文件内容如下:");

24      try

25      {

26        FileReader fr = new FileReader(fileName);

27        BufferedReader br = new BufferedReader(fr);

28        while((aLine = br.readLine())!=null)

29        {

30          System.out.println(Integer.toString(lineNo)+"  "+aLine);

31          lineNo++;

32        }

33        fr.close();

34      }

35      catch(IOException ex)

36      {

37        System.out.println("列出文件失败!");

38      }

39    }

40    public static void copy(String source,String target)

41    {

42      int ch;

43      try

44      {

45        FileReader fr = new FileReader(source);

46        FileWriter fw = new FileWriter(target);

47        while((ch = fr.read())!=-1)

48          fw.write(ch);

49        fr.close();

50        fw.close();

51      }

52      catch(IOException ex)

53      {

54        System.out.println("复制文件失败!");

55      }

56    }

57    public static void format(String source,String target)

58    {

59      String aLine;

60      int lineNo = 1;

61      try

62      {

63        FileReader fr = new FileReader(source);

64        FileWriter fw = new FileWriter(target);

65        BufferedReader br = new BufferedReader(fr);

66        BufferedWriter bw = new BufferedWriter(fw);

67        while((aLine = br.readLine())!=null)

68        {

69          bw.write(Integer.toString(lineNo)+"  "+aLine+"\n\r");

70          lineNo++;

71        }

72        bw.flush();

73        fr.close();

74        fw.close();

75      }

76      catch(IOException ex)

77      {

78        System.out.println("格式化文件失败!");

79      }

80    }

81  }

82  

83  class tester

84  {

85    public static void main(String[] args)

86    {

87      //TextFile.type(args[0]);

88      //TextFile.list(args[0]);

89      TextFile.format(args[0],args[1]);

90      TextFile.type(args[1]);

91      

92    }

93  }