inputStream/OutputStream:输入/输出流的所有类的超类
write()写入
read()读出 -1时读到末尾
输入流是往外->读，输出流是往内->写
字节缓冲流仅仅提供缓冲区BufferOutputStream/BufferInputStream
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| package 流.字节流;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
public class BufferStreamDemo {
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
BufferedOutputStream bs=new BufferedOutputStream(new FileOutputStream("D:\\test.txt"));
bs.write("Hello\r\n".getBytes());
bs.write("World\r\n".getBytes());
bs.close();
BufferedInputStream bsi=new BufferedInputStream(new FileInputStream("D:\\test.txt"));
byte[] bys=new byte[1024];
int len;
while((len=bsi.read(bys))!=-1) {
System.out.println(new String(bys,0,len));
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
|
