初识IO流复制

package file;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class Test {

	public static void main(String[] args) {
	
	try {
		FileInputStream fileInputStream = new FileInputStream("D:\\Program_Files\\课堂文件\\qqq.avi");
		FileOutputStream fileOutputStream = new FileOutputStream("D:\\Program_Files\\课堂文件\\学生管理.avi");
		int data =0;
		try {
			while((data = fileInputStream.read())!=-1) {   //将数据从”qqq.avi“读到Java中，当文件读到底时返回-1
				 fileOutputStream.write(data);     //将Java中的数据写到”学生管理.avi"中
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	} catch (FileNotFoundException e) {
		e.printStackTrace();
	}
	}
}

运行结果

入流

FileInputStream fileInputStream = new FileInputStream("D:\\Program_Files\\课堂文件\\qqq.avi");

出流

FileOutputStream fileOutputStream = new FileOutputStream("D:\\Program_Files\\课堂文件\\学生管理.avi");

能读取二进制文件，图片、视频、音频等