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Java Writer

It is an abstract class for writing to character streams. The methods that a subclass must implement are write(char[], int, int), flush(), and close(). Most subclasses will override some of the methods defined here to provide higher efficiency, functionality or both.

Fields

Modifier and Type Field Description
protected Object lock The object used to synchronize operations on this stream.

Constructor

Modifier Constructor Description
protected Writer() It creates a new character-stream writer whose critical sections will synchronize on the writer itself.
protected Writer(Object lock) It creates a new character-stream writer whose critical sections will synchronize on the given object.

Methods

Modifier and Type Method Description
Writer append(char c) It appends the specified character to this writer.
Writer append(CharSequence csq) It appends the specified character sequence to this writer
Writer append(CharSequence csq, int start, int end) It appends a subsequence of the specified character sequence to this writer.
abstract void close() It closes the stream, flushing it first.
abstract void flush() It flushes the stream.
void write(char[] cbuf) It writes an array of characters.
abstract void write(char[] cbuf, int off, int len) It writes a portion of an array of characters.
void write(int c) It writes a single character.
void write(String str) It writes a string.
void write(String str, int off, int len) It writes a portion of a string.

Java Writer Example

Output:

Done

output.txt:

I love my country

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