IO 字节流学习

复制图片和MP3

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class inputstream {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//test1();//复制图片
		test2();//复制MP3
	}
	static void test1(){
		FileInputStream fis = null;
		FileOutputStream fos = null;
		try {
			fis = new FileInputStream("F:\\0.jpg");
			fos = new FileOutputStream("F:\\fd.jpg");
			byte[] byte1 = new byte[1024];
			int x = 0;
			while((x = fis.read(byte1))!=-1){
				fos.write(byte1, 0, x);
			}

		} catch (IOException e) {
			// TODO: handle exception
		}
		finally{
			try {
				if(fis != null)
					fis.close();
			} catch (IOException e2) {
				// TODO: handle exception
			}
			try {
				if(fos!=null)
					fos.close();
			} catch (IOException e2) {
				// TODO: handle exception
			}
		}
	}
	static void test2(){
		BufferedInputStream bufi = null;
		BufferedOutputStream bufo = null;
		try {
			bufi = new BufferedInputStream(new FileInputStream("F:\\fd.mp3"));
			bufo = new BufferedOutputStream(new FileOutputStream("F:\\wzz.mp3"));
			byte[] b = new byte[1024];
			int x = 0;
			while((x=bufi.read(b))!=-1){
				bufo.write(b, 0, x);
			}
		} catch (IOException e) {
			// TODO: handle exception
		}
		finally{
			try {
				if(bufi!=null)
					bufi.close();
			} catch (IOException e2) {
				// TODO: handle exception
			}
			try {
				if(bufo!=null)
					bufo.close();
			} catch (IOException e2) {
				// TODO: handle exception
			}
		}
	}
}