public class Stream {
public static void main(String[] args) throws IOException {
FileInputStream in = new FileInputStream(new File("F:\\a.exe"));
FileOutputStream out = new FileOutputStream(new File("C:\\b.exe")); System.out.println(in.available());
byte buf[] = new byte[1024];
int size = -1;
int sum = in.available();
while ((size=in.read(buf,0,buf.length)) != -1) {
if(size < 1024){
// System.out.println("再写入-->"+size);
out.write(size);
}else{
// System.out.println("写入-->" + size);
out.write(buf);
}
}
out.flush();
out.close();
in.close();
}
}
b.exe 总是会比 a.exe 小那么几百个字节,不知道这样写是否正确???请教高手
public class Stream {
public static void main(String[] args) throws IOException {
FileInputStream in = new FileInputStream(new File("F:\\a.exe"));
FileOutputStream out = new FileOutputStream(new File("C:\\b.exe")); System.out.println(in.available());
byte buf[] = new byte[1024];
int size = -1;
int sum = in.available();
while ((size=in.read(buf,0,buf.length)) != -1) {
out.write(buf,0,size);
}
out.flush();
out.close();
in.close();
}
}