java IO 流的学习（我们到底能走多远系列1）

我们到底能走多远系列（1）

private void writeTxt(String path, String value) throws IOException{
OutputStream fos = new FileOutputStream(path);//构造方法1
fos.write(value.getBytes());
fos.close();
}
private void readTxt(String path) throws IOException{
File file = new File(path);
InputStream fis = new FileInputStream(path);//构造方法2
byte b[] = new byte[(int)file.length()] ;
fis.read(b);
System.out.print(new String(b));
fis.close();
}

private void writeTxt(String path, String value) throws IOException{
Writer writer = new FileWriter(path);
writer.write(value);
writer.close();
}

private void readTxt(String path) throws IOException{
Reader reader = new FileReader(path);
char c[] = new char[1024] ;
int len = reader.read(c);
System.out.print(new String(c, 0, len));
reader.close();
}