Java tutorial
import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.PrintStream; public class MainClass { public static void main(String[] args) { try { File tempFile = File.createTempFile("myfile", ".tmp"); FileOutputStream fout = new FileOutputStream(tempFile); PrintStream out = new PrintStream(fout); out.println("some text"); } catch (IOException ex) { System.out.println("There was a problem creating/writing to the temp file"); ex.printStackTrace(); } } }