java IO 读写文件_JAVA_编程开发_程序员俱乐部

public class Test {
	public static void main(String[] args) throws Throwable {
		File file = new File("C:\\Users\\Administrator\\Desktop\\123.jpg");
		File file2 = new File("C:\\Users\\Administrator\\Desktop\\123_4.jpg");
		System.out.println("Started:");
		InputStream in = new FileInputStream(file);
		OutputStream out = new FileOutputStream(file2);
		byte[] tempbytes = new byte[1024];
		while (in.available() > 0) {
			int read = in.read(tempbytes, 0, tempbytes.length);
			System.out.println(read);
			out.write(tempbytes, 0, read);
		}
		out.close();
		in.close();
		System.out.println("ended:");
	}
}