Java IO.pdf - Nguyen Dang Binh

public static void dumpDecimal(String filename) {
}
FileInputStream fin = null;
byte[] buffer = new byte[16];
boolean end = false;
int bytesRead;
Java I/O
try {
fin = new FileInputStream(filename);
while (!end) {
bytesRead = 0;
while (bytesRead < buffer.length) {
int r = fin.read(buffer, bytesRead, buffer.length - bytesRead);
if (r == -1) {
end = true;
break;
}
bytesRead += r;
}
for (int i = 0; i < bytesRead; i++) {
int dec = buffer[i];
if (dec < 0) dec = 256 + dec;
if (dec < 10) System.out.print("00" + dec + " ");
else if (dec < 100) System.out.print("0" + dec + " ");
else System.out.print(dec + " ");
}
System.out.println();
}
}
catch (IOException e) {System.err.println(e);}
finally {
try {
if (fin != null) fin.close();
}
catch (IOException e) { }
}
public static void dumpHex(String filename) {
FileInputStream fin = null;
byte[] buffer = new byte[24];
boolean end = false;
int bytesRead;
try {
fin = new FileInputStream(filename);
while (!end) {
bytesRead = 0;
while (bytesRead < buffer.length) {
int r = fin.read(buffer, bytesRead, buffer.length - bytesRead);
if (r == -1) {
end = true;
break;
}
bytesRead += r;
}
for (int i = 0; i < bytesRead; i++) {
int hex = buffer[i];
if (hex < 0) hex = 256 + hex;
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