?? bufferdemo.java
字號:
import java.io.*;
public class BufferDemo {
public static void main(String[] arguments) {
int start = 0;
int finish = 255;
if (arguments.length > 1) {
start = Integer.parseInt(arguments[0]);
finish = Integer.parseInt(arguments[1]);
} else if (arguments.length > 0)
start = Integer.parseInt(arguments[0]);
ArgStream as = new ArgStream(start, finish);
System.out.println("\nWriting: ");
boolean success = as.writeStream();
System.out.println("\nReading: ");
boolean readSuccess = as.readStream();
}
}
class ArgStream {
int start = 0;
int finish = 255;
ArgStream(int st, int fin) {
start = st;
finish = fin;
}
boolean writeStream() {
try {
FileOutputStream file = new
FileOutputStream("numbers.dat");
BufferedOutputStream buff = new
BufferedOutputStream(file);
for (int out = start; out <= finish; out++) {
buff.write(out);
System.out.print(" " + out);
}
buff.close();
return true;
} catch (IOException e) {
System.out.println("Exception: " + e.getMessage());
return false;
}
}
boolean readStream() {
try {
FileInputStream file = new
FileInputStream("numbers.dat");
BufferedInputStream buff = new
BufferedInputStream(file);
int in = 0;
do {
in = buff.read();
if (in != -1)
System.out.print(" " + in);
} while (in != -1);
buff.close();
return true;
} catch (IOException e) {
System.out.println("Exception: " + e.getMessage());
return false;
}
}
}
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