copybytes.java

nanjing university cs 的java课件。 对新手很有用。付课件中源码。

import java.io.*;

public class CopyBytes {
	public static void main(String[] args) throws IOException {
		if (args.length != 2) {
			throw new RuntimeException("Usage : CopyBytes < src > < dst >");
		}
		File inputFile = new File(args[0]);
		File outputFile = new File(args[1]);

		FileInputStream in = new FileInputStream(inputFile);
		FileOutputStream out = new FileOutputStream(outputFile);
		int c;
		while ( (
			c = in.read()) != -1) {
			out.write(c);
		}
		in.close();
		out.close();
	}
}