Java IO.pdf - Nguyen Dang Binh

Java I/O
ASCII format is the default and is the simplest to implement. This conversion can be
accomplished merely by copying the input data to the console.
Example 4.3. The FileDumper Program
import java.io.*;
import com.macfaq.io.*;
public class FileDumper {
public static final int ASC = 0;
public static final int DEC = 1;
public static final int HEX = 2;
public static void main(String[] args) {
if (args.length < 1) {
System.err.println("Usage: java FileDumper [-ahd] file1 file2...");
return;
}
int firstArg = 0;
int mode = ASC;
if (args[0].startsWith("-")) {
firstArg = 1;
if (args[0].equals("-h")) mode = HEX;
else if (args[0].equals("-d")) mode = DEC;
}
for (int i = firstArg; i < args.length; i++) {
if (mode == ASC) dumpAscii(args[i]);
else if (mode == HEX) dumpHex(args[i]);
else if (mode == DEC) dumpDecimal(args[i]);
if (i < args.length-1) { // more files to dump
System.out.println("\r\n--------------------------------------
\r\n");
}
}
}
public static void dumpAscii(String filename) {
}
FileInputStream fin = null;
try {
fin = new FileInputStream(filename);
StreamCopier.copy(fin, System.out);
}
catch (IOException e) {System.err.println(e);}
finally {
try {
if (fin != null) fin.close();
}
catch (IOException e) { }
}
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