Append or add some contents to the file
import java.io.File; import java.io.FileWriter; public class Main { public static void main(String[] args) throws Exception{ File file = new File("user.txt"); FileWriter writer = new FileWriter(file, true); writer.write("username=java;password=secret" + System.getProperty("line.separator")); writer.flush(); writer.close(); } }
1. | Demonstrate FileWriter. | ||
2. | Use FileWriter to write an array of strings to a file. | ||
3. | Using a Reader and a Writer, returns a String from an InputStream | ||
4. | Implementation of a fast Writer. |