What is OutputStreamWriter in Java?

Java OutputStreamWriter. OutputStreamWriter is a class which is used to convert character stream to byte stream, the characters are encoded into byte using a specified charset. write() method calls the encoding converter which converts the character into bytes.

Why does the OutputStreamWriter convert characters to bytes?

This is because the OutputStreamWriter converts its characters into bytes. For example, some characters require 2 bytes to be stored in the storage. To write such data we can use the output stream writer that converts the character into corresponding bytes and stores the bytes together.

What is the difference between write() and readline() methods of OutputStreamWriter?

The write () method of OutputStreamWriter is used to write to files. The readLine () method of BufferedReader is used to read a line of text from the file. It is very important to close the Input or Output stream after I/O operations. Hence, the close () button is used to do that.

What is the use of output stream in Java?

Java OutputStreamWriter OutputStreamWriter is a class which is used to convert character stream to byte stream, the characters are encoded into byte using a specified charset. write () method calls the encoding converter which converts the character into bytes.

How to convert character stream to byte stream in Java?

OutputStreamWriter is a class which is used to convert character stream to byte stream, the characters are encoded into byte using a specified charset. write () method calls the encoding converter which converts the character into bytes. The resulting bytes are then accumulated in a buffer before being written into the underlying output stream.

How to get transparent buffering of characters written to a Java OutputStreamWriter?

You can get transparent buffering of characters written to a Java OutputStreamWriter by wrapping it in a Java BufferedWriter. All bytes written to the BufferedWriter will first get buffered inside an internal byte array in the BufferedWriter. When the buffer is full, the buffer is flushed to the underlying OutputStreamWriter all at once.