• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

PrintWriter

 
Ranch Hand
Posts: 1491
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
It creates only his.txt file, but String ret is not added to his.txt file. File is blank. Why?

import java.io.*;
public class fil {
static PrintWriter history;
public static void main(String args[]){
try {
history = new PrintWriter(new FileWriter("his.txt"));
//history.print("ret");
} catch(IOException e) {}
history.print("ret");
}
}
 
Bartender
Posts: 10336
Hibernate Eclipse IDE Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You need to flush the stream. Try calling the flush() method in your PrintWriter object.
 
kri shan
Ranch Hand
Posts: 1491
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Thanks Paul, now it works fine.
 
kri shan
Ranch Hand
Posts: 1491
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
HI Paul, What is the difference between these two ? both are doing the same thing.

PrintWriter history = new PrintWriter(new FileWriter("his.txt"));
PrintWriter history = new PrintWriter(new FileWriter( new File("his.txt")));
 
Paul Sturrock
Bartender
Posts: 10336
Hibernate Eclipse IDE Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Nothing really, you are just seeing two different constructors for the FileWriter class.
 
Consider Paul's rocket mass heater.
reply
    Bookmark Topic Watch Topic
  • New Topic