Loading, saving and displaying text - An Introduction to Graphical User Interfaces with Java Swing - page 97

14.

// Buffer for the text

15.

char [] buffer = new char [128];

16.

for ( int i=0;i<buffer.length; i++) {

17.

buffer[i] = '-';

18.

}

19.
20.

// Create two File-variables

21.

File readfile = new File(path+ReadFileName);

22.

File writefile = new File(path+WriteFileName);

23.
24.

// READING:

25.

if (readfile.exists())

26.

{

27.

try

{ 28.

// Create a reader. 29.

FileReader fr = new FileReader(readfile); 30.

31.
32. // Read the file and store 100 characters in the

// buffer starting at position 5 of the buffer. 33.

fr.read(buffer,5, 100); 34.

35.
36.

// close file

37.

fr.close();

38.

}

39.

catch (Exception ex)

40.

{

41.

System.out.println("Problem opening file "+readfile.getName());

42.

}

43.

}// if

44.

else

45.

{

46.

System.out.println("File not found "+readfile.getName());

47.

}

48.

System.out.println("Buffer>"+buffer+"<Buffer");

49.
50. // WRITING:

try 51.

{ 52.

if (writefile.exists()) 53.

{ 54.

writefile.delete(); 55.

} 56.

if (writefile.createNewFile()) 57.

58.

{

59.

// create a writer

60.

FileWriter fw = new FileWriter(writefile);