September 2005
Beginner
576 pages
13h 6m
English
Content preview from SAMS Teach Yourself Programming with Java™ in 24 Hours, FOURTH EDITIONBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Converting Objects and Simple Variables
One of the most common tasks you'll need to accomplish in Java is to convert information from one form into another. There are several types of conversions you can do:
Converting an object into another object
Converting a simple variable into another type of variable
Using an object to create a simple variable
Using a simple variable to create an object
Simple variables are the basic data types you learned about during Hour 5, “Storing and Changing Information in a Program.” These types include int, float, char, long, and double.
When using a method or an expression in a program, you must use the right type of information that's expected by these methods and expressions. A method that expects a Calendar object ...
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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.