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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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