Java IO.pdf - Nguyen Dang Binh

}
}
in = new CipherInputStream(in, des);
}
catch (GeneralSecurityException e) {
throw new IOException(e.getMessage());
}
}
if (deflated) {
in = new InflaterInputStream(in);
}
else if (gzipped) {
in = new GZIPInputStream(in);
}
Java I/O
InputStreamReader isr = new InputStreamReader(in, inputEncoding);
OutputStreamWriter osw = new OutputStreamWriter(out, outputEncoding);
int c;
while ((c = isr.read()) != -1) {
osw.write(c);
}
isr.close();
osw.close();
There's one new method in this class. An overloaded variant of dump() can be invoked to
dump a text file in a particular encoding. This method accepts an input encoding string and an
output encoding string as arguments. These are used to form readers and writers that interpret
the bytes read from the file and written onto the output stream. Output encoding is optional. If
it's omitted, the platform's default encoding is used.
The FileViewer2 class is straightforward. Aside from using a ModePanel2 instead of a
ModePanel, the only change it really requires is in the actionPerformed() method. Here you
have to test whether the format is text or numeric and select the dump() method accordingly.
Example 15.11 illustrates.
Example 15.11. FileViewer2
import javax.swing.*;
import java.io.*;
import com.macfaq.io.*;
import com.macfaq.swing.*;
import java.awt.*;
import java.awt.event.*;
public class FileViewer2 extends JFrame
implements WindowListener, ActionListener {
JFileChooser fc = new JFileChooser();
JStreamedTextArea theView = new JStreamedTextArea();
ModePanel2 mp = new ModePanel2();
public FileViewer2() {
super("FileViewer");
}
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