June 2004
Intermediate to advanced
848 pages
21h 28m
English
Content preview from Just Java™ 2
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Sending Email by Java
As our next example, let's write a Java program to send some email. Email is sent by socketed communication with port 25 on a computer system. All we are going to do is open a socket connected to port 25 on some system that is running a mail server and speak “mail protocol” to the sendmail demon at the other end. If we speak the mail protocol correctly, it will listen to what we say, and send the email for us.
The following requires an Internet standard mail (SMTP) program running on the server. If your server has some non-standard proprietary mail program on it, you're out of luck. If your ISP uses a different port for mail (mine uses port 5190) use that instead. You can check which program you have by telnetting to ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.