Java PrintWriter create from File object
import java.io.File; import java.io.IOException; import java.io.PrintWriter; public class Main { public static void main(String[] args) throws IOException { File file = new File("Main.java"); PrintWriter outputFile = new PrintWriter(file); outputFile.println("demo2s.com"); outputFile.close();//w w w .ja v a 2 s .c o m System.out.println("Data written to the file."); } }