This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.
	| Class | PrintWriter | 
|---|
	
		| Name | flush() | 
	
	
| Examples | 
PrintWriter output;
void setup() {
  // Create a new file in the sketch directory
  output = createWriter("positions.txt"); 
}
void draw() {
  point(mouseX, mouseY);
  output.println(mouseX);  // Write the coordinate to the file
}
void keyPressed() {
  output.flush();  // Writes the remaining data to the file
  output.close();  // Finishes the file
  exit();  // Stops the program
}
 | 
|---|
		
		| Description | Flushes the PrintWriter object. This is necessary to ensure all remaining data is written to the file before it is closed. | 
	| Syntax | 
pw.flush()
 | 
|---|
		| Parameters | 
| pw | any object of the type PrintWriter | 
 | 
Updated on January 21, 2019 10:05:16am EST